chore: initial commit

- Track MiroSociety source: backend (FastAPI), frontend (Vue3/Vite), docs, configs.
- Add start.sh / deploy.sh for local dev (uv venv + npm + dev servers on 31400/31401).
- Fix pyproject.toml: missing httpx dependency.
- Tighten .gitignore: .env, .venv, node_modules, data/, *.log, uv.lock, frontend/dist, etcd.

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

render.yaml

@@ -0,0 +1,18 @@
+services:
+  - type: web
+    name: mirosociety
+    runtime: docker
+    dockerfilePath: ./Dockerfile
+    plan: starter
+    envVars:
+      - key: LLM_API_KEY
+        sync: false
+      - key: LLM_BASE_URL
+        value: https://api.openai.com/v1
+      - key: LLM_MODEL
+        value: gpt-4o-mini
+    disk:
+      name: mirosociety-data
+      mountPath: /app/data
+      sizeGB: 1
+    healthCheckPath: /health