feat: add default thinking thread — Timmy always ponders (#75)

src/dashboard/routes/thinking.py

@@ -0,0 +1,65 @@
+"""Thinking routes — Timmy's inner thought stream.
+
+GET  /thinking            — render the thought stream page
+GET  /thinking/api        — JSON list of recent thoughts
+GET  /thinking/api/{id}/chain — follow a thought chain
+"""
+
+import logging
+from pathlib import Path
+
+from fastapi import APIRouter, Request
+from fastapi.responses import HTMLResponse, JSONResponse
+from fastapi.templating import Jinja2Templates
+
+from timmy.thinking import thinking_engine
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/thinking", tags=["thinking"])
+templates = Jinja2Templates(directory=str(Path(__file__).parent.parent / "templates"))
+
+
+@router.get("", response_class=HTMLResponse)
+async def thinking_page(request: Request):
+    """Render Timmy's thought stream page."""
+    thoughts = thinking_engine.get_recent_thoughts(limit=50)
+    return templates.TemplateResponse(
+        request,
+        "thinking.html",
+        {"thoughts": thoughts},
+    )
+
+
+@router.get("/api", response_class=JSONResponse)
+async def thinking_api(limit: int = 20):
+    """Return recent thoughts as JSON."""
+    thoughts = thinking_engine.get_recent_thoughts(limit=limit)
+    return [
+        {
+            "id": t.id,
+            "content": t.content,
+            "seed_type": t.seed_type,
+            "parent_id": t.parent_id,
+            "created_at": t.created_at,
+        }
+        for t in thoughts
+    ]
+
+
+@router.get("/api/{thought_id}/chain", response_class=JSONResponse)
+async def thought_chain_api(thought_id: str):
+    """Follow a thought chain backward and return in chronological order."""
+    chain = thinking_engine.get_thought_chain(thought_id)
+    if not chain:
+        return JSONResponse({"error": "Thought not found"}, status_code=404)
+    return [
+        {
+            "id": t.id,
+            "content": t.content,
+            "seed_type": t.seed_type,
+            "parent_id": t.parent_id,
+            "created_at": t.created_at,
+        }
+        for t in chain
+    ]