fix(ui): external adapter selection, config field placement, and transcript parser freshness

- Fix external adapters (hermes, droid) not auto-selected when
  navigating with ?adapterType= param — was using a stale
  module-level Set built before async adapter registration
- Move SchemaConfigFields to render after thinking effort (same
  visual area as Claude's chrome toggle) instead of bottom of
  config section
- Extract SelectField into its own component to fix React hooks
  order violation when schema fields change between renders
- Add onAdapterChange() subscription in registry.ts so
  registerUIAdapter() notifies components when dynamic parsers
  load, fixing stale parser for old runs
- Add parserTick to both RunTranscriptView and
  useLiveRunTranscripts to force recomputation on parser change

ui/src/components/transcript/useLiveRunTranscripts.ts

@@ -3,7 +3,7 @@ import { useQuery } from "@tanstack/react-query";
 import type { LiveEvent } from "@paperclipai/shared";
 import { instanceSettingsApi } from "../../api/instanceSettings";
 import { heartbeatsApi, type LiveRunForIssue } from "../../api/heartbeats";
-import { buildTranscript, getUIAdapter, type RunLogChunk, type TranscriptEntry } from "../../adapters";
+import { buildTranscript, getUIAdapter, onAdapterChange, type RunLogChunk, type TranscriptEntry } from "../../adapters";
 import { queryKeys } from "../../lib/queryKeys";
 
 const LOG_POLL_INTERVAL_MS = 2000;
@@ -68,6 +68,11 @@ export function useLiveRunTranscripts({
   const seenChunkKeysRef = useRef(new Set<string>());
   const pendingLogRowsByRunRef = useRef(new Map<string, string>());
   const logOffsetByRunRef = useRef(new Map<string, number>());
+  // Tick counter to force transcript recomputation when dynamic parser loads
+  const [parserTick, setParserTick] = useState(0);
+  useEffect(() => {
+    return onAdapterChange(() => setParserTick((t) => t + 1));
+  }, []);
   const { data: generalSettings } = useQuery({
     queryKey: queryKeys.instance.generalSettings,
     queryFn: () => instanceSettingsApi.getGeneral(),
@@ -285,7 +290,7 @@ export function useLiveRunTranscripts({
       );
     }
     return next;
-  }, [chunksByRun, generalSettings?.censorUsernameInLogs, runs]);
+  }, [chunksByRun, generalSettings?.censorUsernameInLogs, parserTick, runs]);
 
   return {
     transcriptByRun,