course: fix P0 content errors + completion/mobile/keyboard UX (review A)

1 files changed, 18 insertions, 14 deletions

diff --git a/course/chapters/02-architecture.json b/course/chapters/02-architecture.json
index 7dee513..8e8826b 100644
--- a/course/chapters/02-architecture.json
+++ b/course/chapters/02-architecture.json
@@ -7,12 +7,12 @@
     {
       "id": "2.1",
       "title": "Terminal, modules, commands",
-      "objective": "See how the terminal, module manager and command registry fit together.",
+      "objective": "See what is loaded, why a command can be listed but broken, and what the system is doing.",
       "minutes": 9,
       "commands": [
         "modules",
-        "status",
-        "help"
+        "doctor",
+        "status"
       ],
       "blocks": [
         {
@@ -37,23 +37,24 @@
         },
         {
           "type": "cmd",
-          "text": "check"
+          "text": "doctor"
         },
         {
           "type": "tip",
-          "text": "A command that exists in `help` but fails at runtime usually has an unmet module requirement that `check` reports."
+          "text": "A command that exists in `help` but fails at runtime usually has an unmet module requirement that `doctor` reports."
         }
       ],
       "exercise": {
-        "instruction": "List the loaded modules.",
+        "instruction": "Run `doctor` and see how it ranks module problems.",
         "accept": [
+          "doctor",
           "modules",
-          "status"
+          "module-info *"
         ],
         "check": {
           "type": "command"
         },
-        "hint": "Type: modules"
+        "hint": "Type: doctor"
       },
       "quiz": {
         "q": "Who executes a command after you press Enter?",
@@ -76,9 +77,11 @@
       "objective": "Understand where files live and why a module edit sometimes needs a rebuild and sometimes does not.",
       "minutes": 10,
       "commands": [
-        "status",
-        "help",
-        "load-local"
+        "pwd",
+        "cd",
+        "tree",
+        "health-check",
+        "mem"
       ],
       "blocks": [
         {
@@ -103,14 +106,15 @@
         }
       ],
       "exercise": {
-        "instruction": "Run `status` and find the VFS size line.",
+        "instruction": "Run `health-check` and find the VFS size line.",
         "accept": [
-          "status"
+          "health-check",
+          "mem"
         ],
         "check": {
           "type": "command"
         },
-        "hint": "Type: status"
+        "hint": "Type: health-check"
       },
       "quiz": {
         "q": "Which tier needs `rebuild-bundles.py` after an edit?",