fix: add uv.lock, server/app.py, project.scripts, and openenv-core dependency

pyproject.toml

@@ -12,4 +12,8 @@ dependencies = [
     "fastapi>=0.110.0",
     "uvicorn>=0.29.0",
     "pyyaml>=6.0",
+    "openenv-core>=0.2.0",
 ]
+
+[project.scripts]
+server = "app:app"

server/app.py

@@ -0,0 +1,18 @@
+"""
+server/app.py  –  Entry point for multi-mode deployment.
+
+Re-exports the FastAPI app from the parent package so the server can be
+started from either the repo root or the server/ subdirectory.
+"""
+
+import os
+import sys
+
+# Allow imports from the repo root regardless of working directory
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+from app import app  # noqa: F401 — re-export for uvicorn
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run("server.app:app", host="0.0.0.0", port=7860, reload=False)