build: finalize stratos refactor, textarea hardening, and payload limit alignment

fix: restore desktop layout and resolve component overlap

feat: source-grounding audit & mobile-responsive UI overhaul

Release v3.5: Final stable build - Restored Agent connectivity and UI mapping

Build 3.5.1: Event-loop hardening + Multi-Tool Synchronization + Trusted-Filter Rescue

Release v3.5: Final stable build - Restored Agent connectivity and UI mapping

feat: integrate google cse search bar with custom styling

fix: resolve frontend suffix error and sync backend search tiers

Final production merge: Code updated, local utilities preserved

Initial commit for CAWNCADE AI