CRITICAL SECURITY FIX: Pending sessions (awaiting approval) were granted
video.view permission, allowing denied sessions to see video when they
reconnected.
**Vulnerability:**
1. Session requests access and enters pending mode
2. Primary session denies the request
3. Denied session clicks "Try Again" and reconnects
4. New session enters pending mode but has video.view permission
5. User can see video stream despite being denied
**Fix:**
Remove PermissionVideoView from SessionModePending. Pending sessions now
have NO permissions until explicitly approved by the primary session.
This ensures:
- Denied sessions cannot access video on reconnection
- Only approved sessions (observer/queued/primary) can view video
- CanReceiveVideo() properly blocks video frames for pending sessions
Address all linting warnings and errors in both backend and frontend code:
**Go (golangci-lint):**
- Add error checking for ignored return values (errcheck)
- Remove unused RPC functions (unused)
- Fix import formatting (goimports)
**TypeScript/React (eslint):**
- Replace all 'any' and 'Function' types with proper type definitions
- Add RpcSendFunction type for consistent JSON-RPC callback signatures
- Fix React Hook exhaustive-deps warnings by adding missing dependencies
- Wrap functions in useCallback where needed to stabilize dependencies
- Remove unused variables and imports
- Remove empty code blocks
- Suppress exhaustive-deps warnings where intentional (with comments)
All linting now passes with 0 errors and 0 warnings.