chore: remove hardcoded prod passwords from test scripts and workflows

Fix: Localized UI verification feedback for Swarm/OIDC testing, UI locking pre-validation, password fallback parsing fix, and icon corrections

Refactor AI Config and Fix Login failure: Migrated services to a structured api directory, updated backend schemas for multiple TTS/STT providers, and improved settings/chat UI coverage.

fix: swarm control ui for empty sessions ...

- Ensures workspace_id is generated and persistently committed when opening Swarm Control without any nodes (or when reading legacy sessions)
- Fixes frontend Swarm Control layout to show File Explorer icons regardless of whether any nodes are actively attached
- Renders empty node file explorer properly linked to the single Hub backend session workspace for browser features to use

refactor: consolidate chat into swarm_control everywhere

fix(sync): broadcast CLEANUP and PURGE instantly on session delete, update protobufs

fix(frontend): swarm file explorer layout

refactor(frontend): move remaining pages into feature modules

refactor(frontend): move shared components into shared/components

refactor(frontend): move nodes page and terminal into nodes feature module

refactor(frontend): move voice chat into feature module

refactor(frontend): move chat UI into feature module and update imports