Fix Applied:
1. Added supports_chamber_temp() helper function that returns True only for X1/X1C/X1E, P2S, and H2 series
2. Modified printer_state_to_dict() to filter out chamber, chamber_target, chamber_heating from temperatures for unsupported models
3. Added model caching in PrinterManager so we can look up the model without a database query
4. Updated all callers (main.py, websocket.py) to pass the model
The chamber temperature widget will now simply not appear for P1S/P1P/A1/A1Mini printers since the temperatures.chamber field won't be sent to the frontend.
- New APIBrowser component with full OpenAPI schema integration
- Fetches and parses /openapi.json automatically
- Groups endpoints by API tags (printers, archives, settings, etc.)
- Expandable endpoint sections with color-coded method badges
- Path parameter, query parameter, and JSON body editors
- Auto-populates request body with schema examples
- Live API request execution with response display
- Response shows status code, timing, and formatted JSON
- Copy response button with clipboard fallback
- Search to filter endpoints across all categories
- Expand All / Collapse All buttons
- Link to Swagger UI (/docs)
- Two-column layout for API Keys tab
- Left: API key management + webhook documentation
- Right: API Browser with dedicated test key input
- Parameter validation
- Shows warning for missing required parameters
- Validates before sending requests to avoid 422 errors
- UX improvements
- "Use in API Browser" button on newly created keys
- Responsive layout (stacked on mobile, side-by-side on xl+)