Add AI task composition for routines (bot + web client)

Users can now describe a goal and have AI auto-generate 4-7 ADHD-friendly
steps, which they can review and modify before saving.

- ai/ai_config.json: Add step_generator prompt and ai_compose examples
  to command_parser so bot recognises vague task descriptions
- api/routes/ai.py: New POST /api/ai/generate-steps endpoint — calls
  LLM via ai_parser, validates and sanitises returned steps
- api/main.py: Register new ai_routes module
- bot/commands/routines.py: Add ai_compose action — generates steps,
  shows numbered list with durations, uses existing yes/no confirm flow
- synculous-client/src/lib/api.ts: Add api.ai.generateSteps(goal)
- synculous-client/src/app/dashboard/routines/new/page.tsx: Add
  Generate with AI panel with collapsible textarea, loading spinner,
  and inline error; generated steps slot into existing editable list

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/main.py

@@ -23,6 +23,7 @@ import api.routes.rewards as rewards_routes
 import api.routes.victories as victories_routes
 import api.routes.adaptive_meds as adaptive_meds_routes
 import api.routes.snitch as snitch_routes
+import api.routes.ai as ai_routes
 
 app = flask.Flask(__name__)
 CORS(app)
@@ -41,6 +42,7 @@ ROUTE_MODULES = [
     victories_routes,
     adaptive_meds_routes,
     snitch_routes,
+    ai_routes,
 ]