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>

bot/commands/routines.py

@@ -93,6 +93,56 @@ async def handle_routine(message, session, parsed):
 
         await _create_routine_with_steps(message, token, name, description, steps)
 
+    elif action == "ai_compose":
+        goal = parsed.get("goal")
+        name = parsed.get("name", "my routine")
+
+        if not goal:
+            await message.channel.send(
+                "What's the goal for this routine? Tell me what you want to accomplish."
+            )
+            return
+
+        async with message.channel.typing():
+            resp, status = api_request(
+                "post", "/api/ai/generate-steps", token, {"goal": goal}
+            )
+
+        if status != 200:
+            await message.channel.send(
+                f"Couldn't generate steps: {resp.get('error', 'unknown error')}\n"
+                f"Try: \"create {name} routine with step1, step2, step3\""
+            )
+            return
+
+        steps = resp.get("steps", [])
+        if not steps:
+            await message.channel.send("The AI didn't return any steps. Try describing your goal differently.")
+            return
+
+        if "pending_confirmations" not in session:
+            session["pending_confirmations"] = {}
+
+        confirmation_id = f"routine_create_{name}"
+        session["pending_confirmations"][confirmation_id] = {
+            "action": "create_with_steps",
+            "interaction_type": "routine",
+            "name": name,
+            "description": f"AI-generated routine for: {goal}",
+            "steps": [s["name"] for s in steps],
+            "needs_confirmation": False,
+        }
+
+        total_min = sum(s.get("duration_minutes", 5) for s in steps)
+        steps_list = "\n".join(
+            [f"{i+1}. {s['name']} ({s.get('duration_minutes', 5)} min)" for i, s in enumerate(steps)]
+        )
+        await message.channel.send(
+            f"Here's what I suggest for **{name}** (~{total_min} min total):\n\n"
+            f"{steps_list}\n\n"
+            f"Reply **yes** to create this routine, or **no** to cancel."
+        )
+
     elif action == "add_steps":
         routine_name = parsed.get("routine_name")
         steps = parsed.get("steps", [])