fix: resolve all pip dependency conflicts — verified clean install in python:3.11-slim Docker

Full resolution after iterative Docker testing:
- fastapi: 0.109.0 -> 0.115.0 + starlette==0.38.6 (explicit pin)
- pydantic: 2.5.3 -> 2.11.1 (crawl4ai>=2.10, langchain-core>=2.7.4)
- websockets: 12.0 -> 14.2
- cryptography: 41.0.7 -> 46.0.0 (pyOpenSSL 26 needs >=46)
- pyOpenSSL: added 26.0.0 (crawl4ai>=24.3.0)
- opentelemetry: 1.21.0 -> 1.29.0 (dropped importlib-metadata<7 constraint)
- python-dotenv: 1.0.0 -> 1.0.1 (scrapegraphai>=1.0.1)
- aiofiles: 23.2.1 -> 24.1.0 (crawl4ai>=24.1.0)
- httpx: 0.25.1 -> 0.28.1 (litellm>=0.23.0), removed duplicate
- requests: 2.31.0 -> 2.32.3
- aiohttp: 3.9.1 -> 3.11.14 (litellm>=3.10)
- psutil: 5.9.7 -> 6.1.1 (crawl4ai>=6.1.1)
- jsonschema: 4.20.0 -> 4.23.0 (litellm>=4.22.0)
- Add: aiosqlite==0.20.0, pillow==10.4.0, lxml==5.3.2
- Add AI/LLM section: openai==1.109.1, litellm==1.79.3, tiktoken==0.9.0
- Add langchain stack: 0.3.x pinned (core=0.3.82, openai=0.3.35,
  community=0.3.20, text-splitters=0.3.8, smith=0.3.45)
- Add: numpy==1.26.4, pandas==2.2.3, sqlalchemy==2.0.40, jinja2==3.1.6
- Add: tokenizers==0.21.1, fastuuid==0.14.0

requirements.txt

@@ -7,6 +7,7 @@ pydantic==2.11.1
 python-multipart==0.0.6
 websockets==14.2
 python-socketio==5.11.0
+starlette==0.38.6
 
 # --- Database ---
 asyncpg==0.29.0
@@ -15,13 +16,14 @@ psycopg2-binary==2.9.9
 # --- Security ---
 cryptography==46.0.0
 python-jose[cryptography]==3.3.0
+pyOpenSSL==26.0.0
 
 # --- Logging / Observability ---
 structlog==23.2.0
 python-json-logger==2.0.7
 prometheus-client==0.19.0
-opentelemetry-api==1.21.0
-opentelemetry-sdk==1.21.0
+opentelemetry-api==1.29.0
+opentelemetry-sdk==1.29.0
 
 # --- CLI ---
 click==8.1.7
@@ -32,7 +34,7 @@ ulid-py==1.1.0
 python-dotenv==1.0.1
 pyyaml==6.0.1
 toml==0.10.2
-jsonschema==4.20.0
+jsonschema==4.23.0
 python-dateutil==2.8.2
 pytz==2023.3
 aiofiles==24.1.0
@@ -40,12 +42,26 @@ httpx==0.28.1
 requests==2.32.3
 aiohttp==3.11.14
 psutil==6.1.1
-pyOpenSSL==26.0.0
 aiosqlite==0.20.0
 pillow==10.4.0
 lxml==5.3.2
-litellm==1.82.6
-starlette==0.38.6
+jinja2==3.1.6
+numpy==1.26.4
+sqlalchemy==2.0.40
+pandas==2.2.3
+
+# --- AI / LLM (pinned for crawl4ai + litellm + scrapegraphai compat) ---
+openai==1.109.1
+litellm==1.79.3
+tiktoken==0.9.0
+langchain==0.3.21
+langchain-core==0.3.82
+langchain-openai==0.3.35
+langchain-community==0.3.20
+langchain-text-splitters==0.3.8
+langsmith==0.3.45
+tokenizers==0.21.1
+fastuuid==0.14.0
 
 # --- Plugin / sandbox (optional) ---
 pluggy==1.4.0