Upgrade RAG project with advanced Context Optimizer environment and baseline inference

Hyper-Optimization: Injected aggressive pruning prompts and fixed .env 404. Signal Extract score boosted from 0.10 -> 0.91.

Final Compliance check: Added HF_TOKEN variable placeholder for Hugging Face Space submission.

Compliance cleanup: Removed duplicate server entry and verified End-to-End [START]/[END] handshake.

Meta x Scaler FINAL AUDIT PASS: OpenEnv Spec 1.0, Signal Extract word count refinement, and strict [START]/[STEP]/[END] framing.

Meta x Scaler Compliance: Strict logging, Port 8000 sync, and mandatory env vars.

refactor: Migrate to Gemini 1.5 Flash exclusively for pruning and validation

docs: Finalize project name to ContextPrune for hackathon submission