test(sensei): add manual test checklist for hook-to-sensei pipeline

Covers micro-lesson, inline-insight, command-hint, belt calibration,
existing command preservation, rate limiting, and session cap.

Part of DOJ-2439 (SRD-T0-1c).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: dbejarano820

docs/testing/doj-2439-test-checklist.md

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+# DOJ-2439 Manual Test Checklist
+
+## Prerequisites
+- [ ] jq installed (`jq --version`)
+- [ ] CodeSensei plugin installed in Claude Code
+- [ ] Profile exists at `~/.code-sensei/profile.json`
+
+## Test 1: Micro-Lesson Trigger (First Encounter)
+
+1. Delete a tech from your profile's `concepts_seen` array (e.g., remove "react")
+2. Ask Claude to create a `.jsx` file
+3. Verify: a `.json` file appears in `~/.code-sensei/pending-lessons/`
+4. Verify: the JSON has `"type":"micro-lesson"` and `"firstEncounter":true`
+5. Verify: the main context shows the delegation hint (not a full teaching prompt)
+6. Verify: if delegation succeeds, sensei produces a 2-3 sentence explanation
+7. Verify: the lesson file is deleted after delivery
+
+## Test 2: Inline-Insight Trigger (Repeat Encounter)
+
+1. Ensure "javascript" is in your profile's `concepts_seen` array
+2. Ask Claude to edit a `.js` file
+3. Verify: pending lesson has `"type":"inline-insight"` and `"firstEncounter":false`
+4. Verify: sensei produces a 1-2 sentence explanation (shorter than micro-lesson)
+
+## Test 3: Command-Hint Trigger
+
+1. Ask Claude to run a `git status` command
+2. Verify: pending lesson has `"type":"inline-insight"` or `"command-hint"`
+3. Verify: sensei explains briefly or skips if trivial
+
+## Test 4: Belt Calibration
+
+1. Set belt to "white" in profile.json
+2. Trigger a micro-lesson (Test 1)
+3. Verify: explanation uses analogies, zero jargon
+4. Change belt to "blue" in profile.json
+5. Trigger same micro-lesson
+6. Verify: explanation uses technical language freely
+
+## Test 5: Existing Commands Unchanged
+
+1. Run `/code-sensei:explain` — verify it still works as before
+2. Run `/code-sensei:quiz` — verify quiz flow unchanged
+3. Run `/code-sensei:why` — verify it still works as before
+4. Run `/code-sensei:progress` — verify dashboard unchanged
+
+## Test 6: Rate Limiting Still Works
+
+1. Rapidly create 3 files within 30 seconds
+2. Verify: only the first file triggers a pending lesson (rate limit = 30s)
+3. Exception: first encounters bypass rate limiting
+
+## Test 7: Session Cap Still Works
+
+1. Set `trigger_count` to 12 in `~/.code-sensei/session-state.json`
+2. Create a new file
+3. Verify: no pending lesson created (cap = 12 per session)