1.5.10

fix(plugins): Dev badge visibility + diagnostic timeout

- Fix dev-badge not showing: check plugin.devBadge (top-level field) in
  addition to plugin.manifest?.devBadge in InstalledCard and
  PluginDetailPage. When a plugin is installed before devBadge was added
  to the manifest, the stored manifest may lack the field.
- Fix diagnostic-logger timeout: increase timeoutMs from 20000 to 60000;
  optimize readTextFile to read only the tail for large files instead of
  loading the entire runtime.log into memory.
- Add diagnostic-logger plugin to plugin market (new).
- Add daily-report plugin _lf.js helper.
- PluginDetailPage: full diagnostic UI with progress modal, inline
  findings, and save-to-file support.
- runPluginNow returns runId + record for downstream parsing.
- SourcesPanel backup note; remove legacy HooksManager group card.