Chore: Restore project name to ContextPrune across all configs

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.

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