Merge remote-tracking branch 'origin/master' into feat/plan-mode

17 master merges (GUI host/web stack, compact header, dshweb, fast local
hooks, windows coverage skips, worktree runtime). Conflicts:
- packages/ui/user-interaction/src/index.ts: master extracted the question
  types to types.ts; took the re-export and grafted our detail field (the
  plan-review payload) into the extracted AskUserQuestionItem.
- generated catalogs regenerated over both sides.

The module graph crossed mermaid's default 500-edge render guard with the
GUI packages plus our plan-mode edges; raised maxEdges in verify-mermaid
(a secure config settable only at initialize).

Note: the remote branch also renamed packages/mode -> packages/plan
(PR #512 plan-mode-simplification, fast-forwarded before this merge).

packages/llm/llm-deepseek/src/adapter.ts

@@ -182,6 +182,9 @@ export class DeepSeekAdapter extends LlmAdapter {
       ...options.sessionId !== undefined
         ? { 'x-deepseek-harness-session-id': String(options.sessionId) }
         : {},
+      ...options.purpose === 'compaction'
+        ? { 'x-deepseek-harness-compact': '1' }
+        : {},
     }
 
     // TODO(http): adopt the Cordis HTTP service when shared transport configuration