Changes
PR #2236 by ksylvan: chore: clarify comments and remove obsolete code examples across backend and web
- Removed redundant comments across Go sources and Svelte components.
- Clarified documentation for provider authentication, streaming, and model discovery.
- Documented cache behavior, configuration precedence, and locale fallback rules.
- Added notes on security safeguards, implementation limitations, and existing test boundaries.
- Deleted obsolete commented-out code without altering runtime behavior.