docs(06): add research and validation strategy

.planning/phases/06-web-chat/06-VALIDATION.md

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+---
+phase: 6
+slug: web-chat
+status: draft
+nyquist_compliant: false
+wave_0_complete: false
+created: 2026-03-25
+---
+
+# Phase 6 — Validation Strategy
+
+> Per-phase validation contract for feedback sampling during execution.
+
+---
+
+## Test Infrastructure
+
+| Property | Value |
+|----------|-------|
+| **Framework** | pytest 8.x + pytest-asyncio (existing) |
+| **Config file** | `pyproject.toml` (existing) |
+| **Quick run command** | `pytest tests/unit -x -q` |
+| **Full suite command** | `pytest tests/ -x` |
+| **Estimated runtime** | ~30 seconds |
+
+---
+
+## Sampling Rate
+
+- **After every task commit:** Run `pytest tests/unit -x -q`
+- **After every plan wave:** Run `pytest tests/ -x`
+- **Before `/gsd:verify-work`:** Full suite must be green
+- **Max feedback latency:** 30 seconds
+
+---
+
+## Per-Task Verification Map
+
+| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
+|---------|------|------|-------------|-----------|-------------------|-------------|--------|
+| 06-xx | 01 | 1 | CHAT-01,02 | unit | `pytest tests/unit/test_web_channel.py -x` | ❌ W0 | ⬜ pending |
+| 06-xx | 01 | 1 | CHAT-03 | unit | `pytest tests/unit/test_web_conversations.py -x` | ❌ W0 | ⬜ pending |
+| 06-xx | 01 | 1 | CHAT-04 | unit | `pytest tests/unit/test_web_rbac.py -x` | ❌ W0 | ⬜ pending |
+| 06-xx | 02 | 2 | CHAT-01,05 | build | `cd packages/portal && npx next build` | ✅ | ⬜ pending |
+| 06-xx | 02 | 2 | CHAT-03 | build | `cd packages/portal && npx next build` | ✅ | ⬜ pending |
+
+*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*
+
+---
+
+## Wave 0 Requirements
+
+- [ ] `tests/unit/test_web_channel.py` — CHAT-01,02: web normalizer, WebSocket message handling
+- [ ] `tests/unit/test_web_conversations.py` — CHAT-03: conversation CRUD API
+- [ ] `tests/unit/test_web_rbac.py` — CHAT-04: RBAC enforcement on chat endpoints
+
+---
+
+## Manual-Only Verifications
+
+| Behavior | Requirement | Why Manual | Test Instructions |
+|----------|-------------|------------|-------------------|
+| WebSocket chat sends message and receives real-time reply | CHAT-01,05 | Requires live WebSocket + LLM | Open /chat, select agent, send message, verify response appears |
+| Conversation history loads on page visit | CHAT-03 | UI rendering | Navigate away and back to /chat, verify previous messages visible |
+| Typing indicator displays during response generation | CHAT-05 | UI animation | Send message, observe animated dots before response |
+| Agent markdown renders correctly | CHAT-05 | Visual rendering | Trigger a response with code blocks / lists / bold |
+| Operator can chat but not see admin nav items | CHAT-04 | RBAC visual | Login as operator, verify /chat accessible but admin-only items hidden |
+
+---
+
+## Validation Sign-Off
+
+- [ ] All tasks have `<automated>` verify or Wave 0 dependencies
+- [ ] Sampling continuity: no 3 consecutive tasks without automated verify
+- [ ] Wave 0 covers all MISSING references
+- [ ] No watch-mode flags
+- [ ] Feedback latency < 30s
+- [ ] `nyquist_compliant: true` set in frontmatter
+
+**Approval:** pending