Merge remote-tracking branch 'origin/master' into gitea/feature/end

Resolved conflicts taking origin/master (v0.5.55) as canonical, with local
features re-applied:
- runtime log level (LOG_LEVEL env + dashboard Settings → Logging, applied
  immediately and persisted across restarts)
- free/noAuth provider enable/disable toggle via providerStrategies.enabled
- parallel model testing (Test All Models / Test Selected Keys)

open-sse/rtk/registry.js

@@ -1,6 +1,7 @@
 import { FILTERS } from "./constants.js";
 import { gitDiff } from "./filters/gitDiff.js";
 import { gitStatus } from "./filters/gitStatus.js";
+import { gitLog } from "./filters/gitLog.js";
 import { grep } from "./filters/grep.js";
 import { find } from "./filters/find.js";
 import { dedupLog } from "./filters/dedupLog.js";
@@ -13,6 +14,7 @@ import { searchList } from "./filters/searchList.js";
 const REGISTRY = {
   [FILTERS.GIT_DIFF]: gitDiff,
   [FILTERS.GIT_STATUS]: gitStatus,
+  [FILTERS.GIT_LOG]: gitLog,
   [FILTERS.GREP]: grep,
   [FILTERS.FIND]: find,
   [FILTERS.DEDUP_LOG]: dedupLog,