Whole-tree audit. Every symbol was checked against core, the plugin
monorepo and all eight third-party plugins in plugins.json first.
- Deprecate (removal 3.10.0) plugin-facing methods nothing calls:
LogoDownloader bulk download, ConfigManager backup/secret wrappers,
APIHelper extras, BackgroundDataService poll API, PluginManager /
PluginStateManager info readers, and a few CacheManager, FontManager,
BaseOddsManager, DynamicTeamResolver methods and PluginTestCase.
plugin_api_usage.py learns their receiver names; DEPRECATIONS doc
regenerated.
- Remove core-internal dead code: CacheMetrics, Vegas status/stats
plumbing, sync "new cycle" message (followers ignore unknown types),
unused operation types, test-only PluginCatalog readers, IPC to_dict
and ping, _parse_form_value, CacheStrategyProtocol, ErrorAggregator
callbacks, duplicate web response helpers.
- Web UI: drop never-mounted json-file-manager.js, the example widget,
utils/error_handler.js, four uncalled PluginAPI methods, and 29
escapeHtml shims (call window.LEDEscape directly). Public globals,
BaseWidget and widget names unchanged.
- Remove six one-off scripts (owner decision) and the unused markupsafe
and pytest-mock pins.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The display serves a control socket (/run/ledmatrix/control.sock) carrying versioned JSON commands, one per line, each answered. Stage 1 covers on-demand start, stop and status; commands are queued on the socket thread and applied on the render thread through the mailbox's own handler, and the web interface falls back to the file mailbox when the socket is unavailable. Protocol and security model: docs/IPC_CONTROL_SOCKET.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
