* fix(thread-page): make thread auto updates opt-in
Wire `Auto` and `Update` to the same manual refresh path and cover the thread flow with an e2e harness.
* fix(thread-page): address PR review findings
Board browsing, catalog filtering, post publishing, and reply publishing had little or no honest whole-repo coverage, which let route-level regressions and duplicated form side effects slip through. This pass adds targeted tests for those user flows and fixes the duplicate `PostFormTable` mounting bug they exposed.
Adds broad coverage across stores, hooks, and runtime utilities while switching `vitest.config.ts` to an explicit whole-repo include list. This turns the coverage report into a real repo-wide baseline instead of an imported-file subset.
Add Random/Preferred/None modes, preferred provider selection, and provider-order fallback. Catbox/Imgur/PostImages on Android via WebView; Electron CDP automation for Imgur/PostImages. Hide upload controls on web runtime.