Fix case repo sync + auto-create Gitea repos + add sync indicator

- auto-sync-cases.sh: fix broken directory scan (was looking for
  status subdirs that don't exist), fix env var word-splitting bug,
  add safe.directory handling and error logging
- cases.py: auto-create Gitea repo on case_create, fix
  documents/original → documents/originals naming mismatch
- app.py: add GET /api/cases/{case_number}/git-status endpoint
- web-ui: add SyncIndicator component in case header showing
  sync status (synced/pending/no remote) with last commit time
- pyproject.toml: add httpx dependency
- CLAUDE.md: update Paperclip wakeup API docs
- settings page: switch tag input from Select to free-text with datalist

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mcp-server/pyproject.toml

@@ -19,6 +19,7 @@ dependencies = [
     "google-cloud-vision>=3.7.0",
     "fastapi>=0.115.0",
     "uvicorn[standard]>=0.30.0",
+    "httpx>=0.27.0",
 ]
 
 [build-system]