Merge origin/master (agent-scope runtime #224, session-query, run-gates CI harness)

Conflict resolution beyond line merges: the ACP bridge's mode/set
re-notify moved inside master's new containment finally (a throwing
presenter must not desync the picker), and session/new keeps the modes
advertisement beside master's plain object return. dsh-mode's boundary
flush moved off the session/event feed onto the loop's interception
seams (agent/prompt-submit / agent/turn-continuation): master's scoped
dispatch made post-commit session observers observe-only — an append
from one re-enters the publishing append — while the two waterfalls
fire outside any log emit and bracket the same boundaries; mode.spec's
boundary helper now dispatches those seams via agentEvents, and the
containment tests stub only the mode/set append. Catalogs, doc graphs,
and the module graph regenerated.

tsconfig.json

@@ -25,6 +25,7 @@
     { "path": "./packages/util/timeout" },
     { "path": "./packages/llm/llm" },
     { "path": "./packages/core/session" },
+    { "path": "./packages/core/scope" },
     { "path": "./packages/session-persistence/session-persistence" },
     { "path": "./packages/session-persistence/session-persistence-jsonl" },
     { "path": "./packages/session-persistence/session-persistence-sqlite" },