docs: add NLU workflow cleanup to Phase 5

Workflow currently has Claude API nodes that need removal.
Added to Phase 5 scope along with keyword routing replacement.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.planning/ROADMAP.md

@@ -85,6 +85,7 @@ Plans:
 ### Phase 5: Polish & Deploy
 **Goal:** Production-ready deployment on Unraid
 
+- Remove NLU/Claude nodes from workflow (replace with keyword routing)
 - Error handling and user-friendly error messages
 - Create Docker container for any custom components
 - Write deployment instructions for Unraid

.planning/STATE.md

@@ -55,6 +55,7 @@ Overall: [████████░░] 80%
 | Default 50 lines, cap at 1000 | Balance between useful context and Telegram limits | 2026-01-30 |
 | Truncate at 3800 chars | Telegram limit is 4096, leave room for header and formatting | 2026-01-30 |
 | Remove NLU from v1.0 | Simple keyword matching sufficient, Claude API adds complexity | 2026-01-31 |
+| NLU cleanup in Phase 5 | Workflow has Claude nodes to remove; defer cleanup to polish phase | 2026-01-31 |
 
 ## Pending Todos
 
@@ -62,7 +63,7 @@ Overall: [████████░░] 80%
 
 ## Blockers & Concerns
 
-(None yet)
+- **Workflow depends on Claude API** — Current workflow still routes through NLU nodes. Requires Anthropic API key to function. Phase 5 will remove this dependency.
 
 ## Session Continuity