phase 8: fix python 3.12 compat, healthchecks, nginx BOM, lockfile regen

Author: codewithleo1

backend/Dockerfile

@@ -1,38 +1,28 @@
-# ── Stage 1: dependency installer ──────────────────────────────────────────
+# Stage 1: dependency installer
 FROM python:3.12-slim AS builder
 
-# Install uv (fast Python package installer)
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
 
 WORKDIR /app
 
-# Copy only dependency files first — this layer is cached until they change
 COPY pyproject.toml uv.lock ./
 
-# Install dependencies into a venv inside /app/.venv
-# --frozen: use exact versions from uv.lock
-# --no-dev: skip pytest, ruff — not needed at runtime
-RUN uv sync --frozen --no-dev
+# Force uv to use the system Python 3.12 instead of downloading 3.14
+RUN uv sync --frozen --no-dev --python /usr/local/bin/python3
 
-# ── Stage 2: runtime image ─────────────────────────────────────────────────
+# Stage 2: runtime image
 FROM python:3.12-slim AS runtime
 
 WORKDIR /app
 
-# Copy the installed venv from builder
 COPY --from=builder /app/.venv /app/.venv
 
-# Copy application source
 COPY backend/ ./backend/
 
-# Make the venv's Python the default
 ENV PATH="/app/.venv/bin:$PATH"
 
-# Create uploads directory (volume will be mounted here in compose)
 RUN mkdir -p /app/uploads
 
-# Expose the port uvicorn will listen on
 EXPOSE 8000
 
-# Run uvicorn in production mode
-CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]
+CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]

docker-compose.prod.yml

@@ -34,7 +34,7 @@
     volumes:
       - qdrant_data:/qdrant/storage
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:6333/healthz || exit 1"]
+      test: ["CMD-SHELL", "timeout 1 bash -c 'cat < /dev/null > /dev/tcp/localhost/6333' || exit 1"]
       interval: 10s
       timeout: 5s
       retries: 5
@@ -70,7 +70,7 @@
       qdrant:
         condition: service_healthy
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:8000/health/live || exit 1"]
+      test: ["CMD-SHELL", "python -c \"import urllib.request; urllib.request.urlopen('http://localhost:8000/health/live')\" || exit 1"]
       interval: 15s
       timeout: 5s
       retries: 5

pyproject.toml

@@ -1,16 +1,17 @@
-[project]
+[project]
 name = "eada"
 version = "0.1.0"
 description = "Add your description here"
 readme = "README.md"
-requires-python = ">=3.14"
+requires-python = ">=3.12"
 dependencies = [
     "alembic>=1.18.5",
     "argon2-cffi>=25.1.0",
     "asyncpg>=0.31.0",
     "duckdb>=1.5.4",
     "fastapi>=0.138.1",
     "langfuse==2.60.0",
+    "langgraph>=1.2.2",
     "litellm>=1.90.0",
     "openpyxl>=3.1.5",
     "pandas>=3.0.3",