From 7deb5e35160c001b29c890cbb1a74e6c65a6e0ba Mon Sep 17 00:00:00 2001
From: Agando <roduccomm@gmail.com>
Date: Thu, 8 Oct 2026 05:06:06 +0200
Subject: auto: 2026-07-29_20:45 changes

---
 api/debug/config.php          |   2 +-
 main.html                     |   6 +-
 modules/core/module-loader.js |   2 +-
 modules/ext/webdav.js         | 430 +++++++++++++++++++++++++++++++++++++++++-
 promt-guide.txt               |   1 +
 5 files changed, 430 insertions(+), 11 deletions(-)
 create mode 100644 promt-guide.txt

diff --git a/api/debug/config.php b/api/debug/config.php
index 4a2bd05..9abc262 100644
--- a/api/debug/config.php
+++ b/api/debug/config.php
@@ -16,7 +16,7 @@ date_default_timezone_set('UTC');
 
 define('DEBUG_DATA_DIR', __DIR__ . '/../../data/debug');
 define('MAX_ERRORS_PER_BATCH', 100);
-define('MAX_BATCH_SIZE_KB', 64);
+define('MAX_BATCH_SIZE_KB', 1024);  // raised 64->1024 (2026-10-05): error batches with stacks legitimately exceed 64KB, causing endless 413s
 define('CLUSTER_SIMILARITY_THRESHOLD', 0.35);
 define('ERRORS_FILE', DEBUG_DATA_DIR . '/errors.json');
 define('SESSIONS_FILE', DEBUG_DATA_DIR . '/sessions.json');
diff --git a/main.html b/main.html
index a747582..0d7d598 100644
--- a/main.html
+++ b/main.html
@@ -1345,13 +1345,13 @@
     </script>
 
     <!-- v4.5.63: A2A scratchpad fixes + agent-register arg fix -->
-<script src="modules/core/core-bundle.js?v=v4.6.18"></script>
+<script src="modules/core/core-bundle.js?v=v4.6.25"></script>
 
     <!-- Async dependency-ordered module loader now only initializes terminal and loads optional ext modules -->
-<script src="modules/core/module-loader.js?v=v4.6.18"></script>
+<script src="modules/core/module-loader.js?v=v4.6.25"></script>
 
     <!-- Critical ext bundle loads AFTER webx11 exists so registerModule calls work -->
-<script src="modules/ext/critical-ext-bundle.js?v=v4.6.18"></script>
+<script src="modules/ext/critical-ext-bundle.js?v=v4.6.25"></script>
 
 <script>
 // ═══ ONE TRUE VERSION SOURCE ═══
diff --git a/modules/core/module-loader.js b/modules/core/module-loader.js
index ef3e2ee..256d87c 100644
--- a/modules/core/module-loader.js
+++ b/modules/core/module-loader.js
@@ -4,7 +4,7 @@
     // Core module bundle loaded synchronously in main.html.
     // This loader only handles version cache-busting, splash, terminal init, and optional ext modules.
 
-    const LATEST_VER = 'v4.6.18';
+    const LATEST_VER = 'v4.6.25';
     const CACHE = '?v=' + LATEST_VER;
     const stored = localStorage.getItem('webx11_cache_ver');
     if (stored !== LATEST_VER) {
diff --git a/modules/ext/webdav.js b/modules/ext/webdav.js
index e989ac9..5cacea0 100644
--- a/modules/ext/webdav.js
+++ b/modules/ext/webdav.js
@@ -7,7 +7,7 @@ class WebDAVModule {
             'webdav-mkdir': { argType: 'dir' }, 'webdav-rename': { argType: 'file' },
             'webdav-move': { argType: 'file' }, 'webdav-backup': { argType: 'file' },
             'webdav-restore': { argType: 'file' }, 'webdav-browser': { argType: 'file' },
-            'webdav-config': { argType: 'file' },
+            'webdav-config': { argType: 'file' }, 'webdav-login': { argType: 'none' },
         };
         this.terminal = null;
         this.config = null;  // { url, username, password }
@@ -71,6 +71,25 @@ class WebDAVModule {
         } catch (e) { return ''; }
     }
 
+    async _fetchSpaceToken(spaceName) {
+        // Fetch the CURRENT token for a space via the session-authenticated
+        // endpoint (self-heals after server-side rotations). Admins may
+        // fetch any space; regular users only their own.
+        try {
+            let sid = '';
+            try { sid = localStorage.getItem('webx11_session_id') || ''; } catch (e) {}
+            const res = await fetch('/api/auth/webdav-token?space=' + encodeURIComponent(spaceName), {
+                credentials: 'same-origin',
+                headers: sid ? { 'X-Session-Id': sid } : {}
+            });
+            if (res.ok) {
+                const d = await res.json();
+                return (d.webdav_token || '').trim() || null;
+            }
+        } catch (e) { /* offline or not logged in */ }
+        return null;
+    }
+
     _promptForToken(spaceName) {
         const input = window.prompt('Enter your WebDAV token for space "' + spaceName + '":', '');
         if (input && input.trim()) return input.trim();
@@ -92,6 +111,7 @@ class WebDAVModule {
     getHelpInfo() {
         return {
             'webdav-config': 'webdav-config [url user pass] — Configure WebDAV. No args = auto-detect from current page URL',
+            'webdav-login': 'webdav-login [username] [password] — Open the login panel (Telegram or password) in THIS browser and configure WebDAV',
             'webdav-status': 'Show current WebDAV configuration status',
             'webdav-ls': 'List files/directories on the WebDAV remote',
             'webdav-push': 'Upload a VFS file to WebDAV',
@@ -164,9 +184,117 @@ class WebDAVModule {
     _getAuthHeader() {
         if (!this.config || !this.config.password) return {};
         const token = btoa(this.config.username + ':' + this.config.password);
-        return { 'Authorization': 'Basic ' + token };
+        // Send BOTH: dav-auth prefers X-WebDAV-Token, so a stale browser-cached
+        // Basic credential can never outrank the fresh token (2026-10-05).
+        return { 'Authorization': 'Basic ' + token, 'X-WebDAV-Token': this.config.password };
+    }
+
+    async _ensureToken() {
+        // Guarantee a token BEFORE any request goes out: a credential-less
+        // write makes dav-auth answer 401 + a Basic challenge, and the browser
+        // then pops its native username/password dialog mid-upload ("username
+        // and password query" — the exact complaint fixed 2026-10-05).
+        if (!this.config || this.config.password) return;
+        // 1) SecretVault-stored token (lazy decrypt)
+        if (this._cachedPassUser) {
+            try { await this._resolvePassword(); } catch (e) { /* vault miss */ }
+        }
+        if (this.config.password) return;
+        // 2) Server-side: current space token via session-authenticated API.
+        const spaceName = this._resolveSpaceName();
+        if (spaceName) {
+            const fresh = await this._fetchSpaceToken(spaceName);
+            if (fresh) {
+                this.config.password = fresh;
+                await this._saveConfig();
+            }
+        }
+        if (this.config.password) return;
+        // Last resort (2026-10-05): a device-code login may have been approved
+        // in Telegram while this page was frozen (Android suspends timers), so
+        // the panel's 3s poll never saw it. Pick it up now — the next push
+        // (or visibilitychange) completes the login by itself.
+        await this._pollPendingDevice();
+    }
+
+    async _pollPendingDevice() {
+        let pend = null;
+        try { pend = JSON.parse(localStorage.getItem('webx11_pending_device') || 'null'); } catch (e) { pend = null; }
+        if (!pend || !pend.code || !pend.poll_key) return false;
+        if (Date.now() - (pend.started || 0) > ((pend.expires_in || 600) + 10) * 1000) {
+            try { localStorage.removeItem('webx11_pending_device'); } catch (e0) {}
+            return false;
+        }
+        try {
+            const pr = await fetch('/api/auth/device-poll', {
+                method: 'POST', headers: { 'Content-Type': 'application/json' },
+                credentials: 'same-origin',
+                body: JSON.stringify({ code: pend.code, poll_key: pend.poll_key })
+            });
+            const pd = await pr.json().catch(function () { return {}; });
+            if (pd.status === 'approved') {
+                try { localStorage.removeItem('webx11_pending_device'); } catch (e1) {}
+                const p = document.getElementById('wdav-login-panel');
+                if (p) p.remove();
+                if (this.terminal && this.terminal.print) {
+                    this.terminal.print('\uD83D\uDD13 Telegram code approved \u2014 logging in\u2026', 'info');
+                }
+                await this._applySession(pd);
+                return true;
+            }
+            if (pd.status === 'expired' || pd.status === 'invalid') {
+                try { localStorage.removeItem('webx11_pending_device'); } catch (e2) {}
+            }
+        } catch (e3) { /* transient \u2014 keep pending for the next attempt */ }
+        return false;
     }
     
+    async _autoBootstrap() {
+        // Zero-command auto-configuration (2026-10-05). Restores the
+        // "it configured automatically" flow: when no config is saved and
+        // this browser holds a WebX11 session, fetch the current token
+        // silently and configure WebDAV for the page space (fallback: the
+        // logged-in user's own space). Called on module load and again as a
+        // fallback before a push — after ONE login in a browser, every later
+        // load auto-configures itself; no webdav-config / webdav-login needed.
+        try {
+            if (this.config && this.config.url) return; // already configured
+            const candidates = [];
+            if (this._spaceName) candidates.push(this._spaceName);
+            let su = this._detectSessionUser();
+            if (!su) {
+                // HttpOnly cookie -> JS cannot read it, but the server can.
+                // Resolve the logged-in user via me-cookie (2026-10-05).
+                try {
+                    const mr = await fetch('/api/auth/me-cookie', { credentials: 'same-origin' });
+                    if (mr.ok) {
+                        const md = await mr.json();
+                        if (md && md.username) {
+                            su = md.username;
+                            try { localStorage.setItem('webx11_username', su); } catch (eS) {}
+                        }
+                    }
+                } catch (em) { /* not logged in */ }
+            }
+            if (su && candidates.indexOf(su) === -1) candidates.push(su);
+            for (const space of candidates) {
+                const tok = await this._fetchSpaceToken(space);
+                if (!tok) continue; // no session in this browser — stay quiet
+                this.config = {
+                    url: 'https://webx11.duckdns.org/spaces/' + space + '/',
+                    username: space,
+                    password: tok
+                };
+                await this._saveConfig();
+                this._autoConfigured = true;
+                if (this.terminal && this.terminal.print) {
+                    this.terminal.print('\u2705 WebDAV auto-configured for space "' + space + '" (browser session detected)', 'success');
+                }
+                return;
+            }
+        } catch (e) { /* never break load */ }
+    }
+
     _normalizeRemotePath(path) {
         // v4.6.16: Paths can arrive as VFS-relative ('file.txt'), space-relative
         // ('/file.txt'), space-prefixed ('/spaces/<user>/file.txt') or even a
@@ -224,6 +352,8 @@ class WebDAVModule {
         if (this._cachedPassUser) {
             await this._resolvePassword();
         }
+        // Never send a credential-less write — fetch the token first (2026-10-05)
+        await this._ensureToken();
         const baseUrl = this.config.url.replace(/\/+$/, '');
         const urlPath = this._normalizeRemotePath(path);
         const url = baseUrl + urlPath;
@@ -239,7 +369,23 @@ class WebDAVModule {
             body: options.body || undefined
         };
         
-        const response = await fetch(url, fetchOpts);
+        let response = await fetch(url, fetchOpts);
+        // Self-heal on 401: fetch the space's current token once and retry.
+        if (response.status === 401) {
+            const spaceName = this._resolveSpaceName();
+            if (spaceName) {
+                const fresh = await this._fetchSpaceToken(spaceName);
+                if (fresh && fresh !== this.config.password) {
+                    this.config.password = fresh;
+                    await this._saveConfig();
+                    response = await fetch(url, {
+                        method: method,
+                        headers: { ...this._getAuthHeader(), ...(options.headers || {}) },
+                        body: options.body || undefined
+                    });
+                }
+            }
+        }
         return response;
     }
     
@@ -513,12 +659,14 @@ class WebDAVModule {
                 const sessionToken = self._detectSessionToken();
 
                 if (sessionUser && sessionToken) {
-                    // Auto-mount the logged-in user's own space
+                    // Auto-mount the logged-in user's own space.
+                    // Prefer a freshly fetched token (self-heals after rotations).
+                    const freshTok = await self._fetchSpaceToken(sessionUser);
                     const autoUrl = autoUrlFor(sessionUser);
                     self.config = {
                         url: autoUrl,
                         username: sessionUser,
-                        password: sessionToken
+                        password: freshTok || sessionToken
                     };
                     await self._saveConfig();
                     self._autoConfigured = true;
@@ -560,6 +708,11 @@ class WebDAVModule {
                     token = localStorage.getItem('webx11_spaces_' + spaceName);
                 }
 
+                // Logged-in session: fetch this space's current token server-side
+                if (!token && sessionUserOther && spaceName) {
+                    token = await self._fetchSpaceToken(spaceName);
+                }
+
                 if (token) {
                     self.config = {
                         url: autoUrl,
@@ -615,6 +768,228 @@ class WebDAVModule {
             }
         };
         
+        // --- webdav-login: authenticate in THIS browser + configure WebDAV ---
+        // Sessions do NOT cross browser contexts: being logged in in Chrome or
+        // the dashboard does not log in the browser that runs this terminal,
+        // so the session-authenticated token fetch returns "No session found"
+        // and pushes fail with a bare 401 (2026-10-05).
+        // Two ways in: Telegram widget (primary) or username+password.
+        this._applySession = async function (data) {
+            const uname = ((data && data.username) || '').toLowerCase();
+            if (!uname) return false;
+            try { if (data.session_id) localStorage.setItem('webx11_session_id', data.session_id); } catch (e) {}
+            try { localStorage.setItem('webx11_username', uname); } catch (e) {}
+            try { if (data.webdav_token) localStorage.setItem('webx11_webdav_token', data.webdav_token); } catch (e) {}
+            const pageSpace = self._spaceName || '';
+            let token = data.webdav_token || '';
+            let targetSpace = uname;
+            // Admin on a space page (e.g. /spaces/newos4/main.html): prefer the
+            // PAGE space token, so pushes land inside that space (their docs
+            // subfolder keeps working). Non-admins fall back to their own.
+            if (pageSpace && pageSpace !== uname) {
+                const pt = await self._fetchSpaceToken(pageSpace);
+                if (pt) { token = pt; targetSpace = pageSpace; }
+            } else if (pageSpace === uname && !token) {
+                token = (await self._fetchSpaceToken(pageSpace)) || '';
+            }
+            let url = 'https://webx11.duckdns.org/spaces/' + targetSpace + '/';
+            if (self.config && self.config.url && self.config.url.indexOf('/spaces/' + targetSpace + '/') !== -1) {
+                url = self.config.url; // preserve an existing sub-folder target (e.g. /spaces/newos4/agando/)
+            }
+            self.config = { url: url, username: targetSpace, password: token };
+            await self._saveConfig();
+            self._autoConfigured = true;
+            self.terminal.print('✅ Logged in as ' + uname + ' — WebDAV configured for space "' + targetSpace + '"', 'success');
+            if (!token) {
+                self.terminal.print('No WebDAV token returned for this space — try: webdav-config', 'warning');
+                return true;
+            }
+            try {
+                const r = await self._webdavRequest('OPTIONS', '/');
+                self.terminal.print('Connection check: HTTP ' + r.status, r.status < 400 ? 'success' : 'warning');
+            } catch (e) {
+                self.terminal.print('Connection check failed: ' + e.message, 'warning');
+            }
+            return true;
+        };
+
+        this.commands['webdav-login'] = async (args) => {
+            // 1) Direct form: webdav-login <username> <password>
+            if (args && args[0] && args[1]) {
+                self.terminal.print('Logging in as "' + args[0] + '"...', 'info');
+                try {
+                    const res = await fetch('/api/auth/login', {
+                        method: 'POST',
+                        headers: { 'Content-Type': 'application/json' },
+                        credentials: 'same-origin',
+                        body: JSON.stringify({ username: String(args[0]).trim().toLowerCase(), password: args[1] })
+                    });
+                    const data = await res.json().catch(function () { return {}; });
+                    if (!res.ok) {
+                        self.terminal.print('❌ Login failed: ' + (data.error || ('HTTP ' + res.status)), 'error');
+                        return;
+                    }
+                    await self._applySession(data);
+                } catch (e) {
+                    self.terminal.print('Login error: ' + e.message, 'error');
+                }
+                return;
+            }
+            // 2) Login panel: Telegram button (preferred) + password form
+            const oldPanel = document.getElementById('wdav-login-panel');
+            if (oldPanel) oldPanel.remove();
+            const panel = document.createElement('div');
+            panel.id = 'wdav-login-panel';
+            panel.style.cssText = 'position:fixed; left:50%; top:50%; transform:translate(-50%,-50%); z-index:10010; width:340px; max-width:92vw; background:var(--bg-tertiary,#141414); border:1px solid var(--border,#333); border-radius:10px; padding:16px; box-shadow:0 8px 32px rgba(0,0,0,.6); font-size:0.9em;';
+            panel.innerHTML = '<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;"><b>Log in to WebX11</b><span id="wdav-login-close" style="cursor:pointer;opacity:.7;padding:2px 6px;">✕</span></div>' +
+                '<div style="text-align:center;margin-bottom:10px;"><button id="wdav-code-btn" style="width:100%;padding:10px;background:var(--accent,#4a9eff);border:none;border-radius:6px;color:#fff;cursor:pointer;font-weight:600;">📲 Login with a code — no popup</button></div>' +
+                '<div id="wdav-code-area" style="display:none;margin-bottom:10px;">' +
+                '<div id="wdav-code-value" style="font-size:1.35em;font-family:monospace;letter-spacing:2px;text-align:center;padding:8px;background:var(--bg-secondary,#222);border-radius:6px;">WX11-XXXXXX</div>' +
+                '<div style="font-size:0.82em;color:var(--text-muted,#888);margin-top:6px;text-align:center;">Open Telegram → <b>@roducbot</b> → send this code.<br>This terminal logs in automatically (waits up to 10 min).</div>' +
+                '<div id="wdav-code-status" style="margin-top:6px;font-size:0.85em;text-align:center;color:var(--warning,#ffaa00);">Requesting code…</div>' +
+                '</div>' +
+                '<div style="text-align:center;color:var(--text-muted,#888);margin:6px 0;">— or —</div>' +
+                '<div id="wdav-tg-mount" style="display:flex;justify-content:center;margin-bottom:6px;min-height:40px;"></div>' +
+                '<div id="wdav-tg-status" style="text-align:center;color:var(--text-muted,#888);margin-bottom:10px;font-size:0.85em;">Telegram widget (in some apps this opens another browser)</div>' +
+                '<div style="text-align:center;color:var(--text-muted,#888);margin:6px 0;">— or —</div>' +
+                '<input id="wdav-user" placeholder="username" autocomplete="username" style="width:100%;margin-bottom:6px;padding:8px;background:var(--bg-secondary,#222);border:1px solid var(--border,#333);border-radius:6px;color:inherit;box-sizing:border-box;">' +
+                '<input id="wdav-pass" type="password" placeholder="password" autocomplete="current-password" style="width:100%;margin-bottom:8px;padding:8px;background:var(--bg-secondary,#222);border:1px solid var(--border,#333);border-radius:6px;color:inherit;box-sizing:border-box;">' +
+                '<button id="wdav-login-btn" style="width:100%;padding:9px;background:var(--accent,#4a9eff);border:none;border-radius:6px;color:#fff;cursor:pointer;">Log in</button>' +
+                '<div id="wdav-login-msg" style="margin-top:8px;color:var(--warning,#ffaa00);min-height:14px;font-size:0.85em;"></div>';
+            document.body.appendChild(panel);
+            let _wdavIv = null;
+            document.getElementById('wdav-login-close').onclick = function () { if (_wdavIv) clearInterval(_wdavIv); panel.remove(); };
+            document.getElementById('wdav-code-btn').onclick = async function () {
+                const area = document.getElementById('wdav-code-area');
+                const val = document.getElementById('wdav-code-value');
+                const stt = document.getElementById('wdav-code-status');
+                area.style.display = 'block';
+                stt.textContent = 'Requesting code…';
+                try {
+                    const r = await fetch('/api/auth/device-start', {
+                        method: 'POST', headers: { 'Content-Type': 'application/json' },
+                        credentials: 'same-origin', body: '{}'
+                    });
+                    const dd = await r.json().catch(function () { return {}; });
+                    if (!r.ok) { stt.textContent = '❌ ' + (dd.error || ('HTTP ' + r.status)); return; }
+                    val.textContent = dd.code;
+                    try { localStorage.setItem('webx11_pending_device', JSON.stringify({ code: dd.code, poll_key: dd.poll_key, started: Date.now(), expires_in: dd.expires_in || 600 })); } catch (eS) {}
+                    try {
+                        var dl = document.getElementById('wdav-code-link');
+                        if (!dl) {
+                            dl = document.createElement('a');
+                            dl.id = 'wdav-code-link';
+                            dl.target = '_blank';
+                            dl.rel = 'noopener';
+                            dl.style.cssText = 'display:block;margin-top:8px;text-align:center;font-size:0.9em;color:var(--accent,#4a9eff);';
+                            dl.textContent = '\uD83D\uDC49 Open @roducbot in Telegram (one tap)';
+                            var areaEl = document.getElementById('wdav-code-area');
+                            if (areaEl) areaEl.appendChild(dl);
+                        }
+                        dl.href = 'https://t.me/roducbot?start=' + encodeURIComponent(dd.code);
+                    } catch (eL) {}
+                    try { await navigator.clipboard.writeText(dd.code); stt.textContent = 'Code copied — send it to @roducbot. Waiting…'; }
+                    catch (e2) { stt.textContent = 'Waiting for approval…'; }
+                    if (_wdavIv) clearInterval(_wdavIv);
+                    const started = Date.now();
+                    _wdavIv = setInterval(async function () {
+                        if (Date.now() - started > ((dd.expires_in || 600) + 5) * 1000) {
+                            clearInterval(_wdavIv);
+                            try { localStorage.removeItem('webx11_pending_device'); } catch (eT) {}
+                            stt.textContent = '❌ Code expired. Press the button to get a new one.';
+                            return;
+                        }
+                        try {
+                            const pr = await fetch('/api/auth/device-poll', {
+                                method: 'POST', headers: { 'Content-Type': 'application/json' },
+                                credentials: 'same-origin',
+                                body: JSON.stringify({ code: dd.code, poll_key: dd.poll_key })
+                            });
+                            const pd = await pr.json().catch(function () { return {}; });
+                            if (pd.status === 'approved') {
+                                clearInterval(_wdavIv);
+                                try { localStorage.removeItem('webx11_pending_device'); } catch (e0) {}
+                                panel.remove();
+                                self.terminal.print('🔓 Telegram code approved — logging in…', 'info');
+                                await self._applySession(pd);
+                            } else if (pd.status === 'expired') {
+                                clearInterval(_wdavIv);
+                                try { localStorage.removeItem('webx11_pending_device'); } catch (eX) {}
+                                stt.textContent = '❌ Code expired. Press the button to get a new one.';
+                            }
+                        } catch (e3) { /* transient — keep polling */ }
+                    }, 3000);
+                } catch (e) { stt.textContent = 'Error: ' + e.message; }
+            };
+            window.webx11TgLogin = async function (user) {
+                const st = document.getElementById('wdav-tg-status');
+                if (st) st.textContent = 'Verifying Telegram login...';
+                try {
+                    const res = await fetch('/api/auth/telegram-login', {
+                        method: 'POST',
+                        headers: { 'Content-Type': 'application/json' },
+                        credentials: 'same-origin',
+                        body: JSON.stringify(user)
+                    });
+                    const data = await res.json().catch(function () { return {}; });
+                    if (!res.ok) {
+                        if (st) st.textContent = '❌ Telegram login failed: ' + (data.error || res.status);
+                        return;
+                    }
+                    const p = document.getElementById('wdav-login-panel');
+                    if (p) p.remove();
+                    await self._applySession(data);
+                } catch (e) {
+                    if (st) st.textContent = 'Error: ' + e.message;
+                }
+            };
+            const mount = document.getElementById('wdav-tg-mount');
+            const tw = document.createElement('script');
+            tw.src = 'https://telegram.org/js/telegram-widget.js?22';
+            tw.setAttribute('data-telegram-login', 'roducbot');
+            tw.setAttribute('data-size', 'large');
+            tw.setAttribute('data-onauth', 'webx11TgLogin(user)');
+            tw.setAttribute('data-request-access', 'write');
+            tw.async = true;
+            mount.appendChild(tw);
+            document.getElementById('wdav-login-btn').onclick = async function () {
+                const u = (document.getElementById('wdav-user').value || '').trim().toLowerCase();
+                const pw = document.getElementById('wdav-pass').value || '';
+                const msg = document.getElementById('wdav-login-msg');
+                if (!u || !pw) { msg.textContent = 'Enter username and password.'; return; }
+                msg.textContent = 'Logging in...';
+                try {
+                    const res = await fetch('/api/auth/login', {
+                        method: 'POST',
+                        headers: { 'Content-Type': 'application/json' },
+                        credentials: 'same-origin',
+                        body: JSON.stringify({ username: u, password: pw })
+                    });
+                    const data = await res.json().catch(function () { return {}; });
+                    if (!res.ok) { msg.textContent = '❌ ' + (data.error || ('HTTP ' + res.status)); return; }
+                    panel.remove();
+                    await self._applySession(data);
+                } catch (e) {
+                    msg.textContent = 'Error: ' + e.message;
+                }
+            };
+            self.terminal.print('🔐 Login panel opened — use the Telegram button, or the username/password form.', 'info');
+        };
+
+        // Resume-pending-login hooks (2026-10-05): Android freezes timers while
+        // the user is in Telegram approving the code; on return the 3s interval
+        // may never fire again. Poll immediately when visible + once on load, so
+        // a reload after approval still completes the login.
+        try {
+            document.addEventListener('visibilitychange', function () {
+                if (document.visibilityState === 'visible') { self._pollPendingDevice(); }
+            });
+        } catch (eV) {}
+        try { self._pollPendingDevice(); } catch (eI) {}
+        // Zero-command auto-config: configure WebDAV silently whenever
+        // this browser has a WebX11 session (2026-10-05)
+        try { self._autoBootstrap(); } catch (eB) {}
+
         // --- webdav-status: show current WebDAV config ---
         this.commands['webdav-status'] = async () => {
             if (!self.config || !self.config.url) {
@@ -668,6 +1043,8 @@ class WebDAVModule {
                 self.terminal.print('File not found in VFS: ' + vfsPath, 'error');
                 return;
             }
+            // No saved config? Try session auto-config first (2026-10-05)
+            if (!self.config || !self.config.url) { await self._autoBootstrap(); }
             try {
                 // Ensure remote dir exists
                 const parts = remotePath.replace(/\/$/, '').split('/').filter(Boolean);
@@ -683,9 +1060,20 @@ class WebDAVModule {
                     self.terminal.print('Pushed: ' + vfsPath + ' → ' + remotePath, 'success');
                 } else {
                     self.terminal.print('Push failed: HTTP ' + resp.status, 'error');
+                    if (resp.status === 401) {
+                        if (!self.config.password) {
+                            self.terminal.print('Hint: this browser has no WebX11 session (sessions do not cross browsers).', 'info');
+                        } else {
+                            self.terminal.print('Hint: token rejected — the browser session may be stale.', 'info');
+                        }
+                        self.terminal.print('      Run: webdav-login  (opens the login panel)', 'info');
+                    }
                 }
             } catch (e) {
                 self.terminal.print('Push error: ' + e.message, 'error');
+                if (/not configured/i.test(e.message || '')) {
+                    self.terminal.print('Hint: no saved WebDAV config in this browser. Log in once with: webdav-login (Telegram code \u2014 no popup).', 'info');
+                }
             }
         };
         
@@ -1802,6 +2190,9 @@ class WebDAVModule {
                 });
 
                 // XHR PUT so we get upload progress events (fetch has none)
+                // Ensure a token BEFORE connecting: a credential-less write
+                // triggers the browser's native Basic-auth dialog (2026-10-05).
+                await self._ensureToken();
                 await new Promise(function(resolve, reject) {
                     const baseUrl = self.config.url.replace(/\/+$/, '');
                     const urlPath = self._normalizeRemotePath(remotePath);
@@ -1809,6 +2200,7 @@ class WebDAVModule {
                     xhr.open('PUT', baseUrl + urlPath, true);
                     const auth = self._getAuthHeader();
                     if (auth.Authorization) xhr.setRequestHeader('Authorization', auth.Authorization);
+                    if (auth['X-WebDAV-Token']) xhr.setRequestHeader('X-WebDAV-Token', auth['X-WebDAV-Token']);
                     xhr.setRequestHeader('Content-Type', file.type || 'application/octet-stream');
                     xhr.upload.onprogress = function(ev) {
                         if (!ev.lengthComputable) return;
@@ -1823,7 +2215,33 @@ class WebDAVModule {
                             lastTime = now;
                         }
                     };
-                    xhr.onload = function() {
+                    xhr.onload = async function() {
+                        // 401 self-heal: refresh the space token once, then retry.
+                        // The XHR path previously had NO retry — a stale token
+                        // failed the upload permanently (fixed 2026-10-05).
+                        if (xhr.status === 401 && !xhr._wdavRetried) {
+                            xhr._wdavRetried = true;
+                            const sp = self._resolveSpaceName();
+                            const fresh = sp ? await self._fetchSpaceToken(sp) : null;
+                            if (fresh && fresh !== (self.config && self.config.password)) {
+                                self.config.password = fresh;
+                                await self._saveConfig();
+                                const retry = new XMLHttpRequest();
+                                retry.open('PUT', baseUrl + urlPath, true);
+                                const a2 = self._getAuthHeader();
+                                if (a2.Authorization) retry.setRequestHeader('Authorization', a2.Authorization);
+                                if (a2['X-WebDAV-Token']) retry.setRequestHeader('X-WebDAV-Token', a2['X-WebDAV-Token']);
+                                retry.setRequestHeader('Content-Type', file.type || 'application/octet-stream');
+                                retry.upload.onprogress = xhr.upload.onprogress;
+                                retry.onload = function() {
+                                    if (retry.status >= 200 && retry.status < 300) resolve();
+                                    else reject(new Error('HTTP ' + retry.status));
+                                };
+                                retry.onerror = function() { reject(new Error('Network error')); };
+                                retry.send(buf);
+                                return;
+                            }
+                        }
                         if (xhr.status >= 200 && xhr.status < 300) resolve();
                         else reject(new Error('HTTP ' + xhr.status));
                     };
diff --git a/promt-guide.txt b/promt-guide.txt
new file mode 100644
index 0000000..a2b437d
--- /dev/null
+++ b/promt-guide.txt
@@ -0,0 +1 @@
+"Act as a digital product specialist. I want to create a €12 micro-guide on [TOPIC]. Provide a detailed table of contents, 3 high-impact 'quick-win' tips, and a step-by-step implementation checklist that delivers immediate value."
\ No newline at end of file
-- 
cgit v1.2.3