Merge origin/master (generic task runtime #219, single-exe closure, package renames)

Semantic resolutions beyond line merges:
- The bash seam keeps resolveMode + the bash/resolve-mode waterfall on
  master's task-free BashExecutor (run/start/resolve only; BashProcess
  handles); tool-bash consults it at its stamping site and escalation
  baseline on master's render/background split, with a waterfall test on
  the recording executor.
- dsh-mode's BASH_FAMILY narrows to ['bash']: bash_output/bash_kill are
  replaced by the kind-generic task_output/task_kill, which span every
  task kind and only observe or stop work, so the access cap withholds
  only the starter it can reason about.
- The plan-mode snapshot suite adopts master's pin grammar (tool-schema
  sidecars; the expectedHeaderSnapshots extension is gone — the exit
  transition deltas, and entering-before-turn-1 needs no second
  snapshot); modes-advertise joins the plan header class (no-model, so
  membership is vacuous). Fixtures re-recorded on the acp-demo bin;
  the replay overlay gains the passthrough sandbox runner.
- examples/plan-acp-agent rewires to @deepseek-ai/dsh-acp-demo and drops
  its tool-bash entry (the spine bundle now composes it); dsh-stdio (the
  renamed stdio-chat home) keeps its /mode command and gains the dsh-mode
  peer edge; the acp bridge keeps the modes surface beside master's
  permission presets.
- mode README gains the Model Experience / Known Limitations sections the
  new README gates require; AGENTS.md ceiling 1370 → 1440 for the kept
  mode/ layout line and Agent efficiency section.

tsconfig.json

@@ -29,17 +29,20 @@
     { "path": "./packages/session-persistence/session-persistence" },
     { "path": "./packages/session-persistence/session-persistence-jsonl" },
     { "path": "./packages/session-persistence/session-persistence-sqlite" },
+    { "path": "./packages/session-query/session-query" },
     { "path": "./packages/core/system-prompt" },
     { "path": "./packages/core/agent" },
+    { "path": "./packages/context/time-context" },
     { "path": "./packages/ui/user-interaction" },
     { "path": "./packages/ui/user-approval" },
+    { "path": "./packages/ui/permission" },
     { "path": "./packages/core/tools" },
     { "path": "./packages/skill/skill" },
     { "path": "./packages/skill/skill-local" },
     { "path": "./packages/skill/tool-skill" },
     { "path": "./packages/ui/tool-ask-user" },
     { "path": "./packages/core/agent-loop" },
-    { "path": "./packages/core/agent-core" },
+    { "path": "./packages/examples/agent-spine-demo" },
     { "path": "./packages/bash/bash" },
     { "path": "./packages/code-runtime/code-runtime" },
     { "path": "./packages/code-runtime/code-runtime-worker" },
@@ -65,13 +68,15 @@
     { "path": "./packages/timeout/timeout-policy" },
     { "path": "./packages/support/invariants" },
     { "path": "./packages/ui/acp" },
-    { "path": "./packages/ui/acp-agent" },
+    { "path": "./packages/examples/acp-demo" },
     { "path": "./packages/ui/app-boot" },
     { "path": "./packages/ui/jsonrpc" },
-    { "path": "./packages/ui/jsonrpc-agent" },
-    { "path": "./packages/ui/stdio-agent" },
+    { "path": "./packages/examples/jsonrpc-demo" },
+    { "path": "./packages/ui/stdio" },
+    { "path": "./packages/examples/stdio-demo" },
     { "path": "./packages/support/llm-replay" },
     { "path": "./packages/support/acp-snapshot" },
+    { "path": "./packages/support/loader-smoke" },
     { "path": "./packages/subagent/subagent" },
     { "path": "./packages/support/subagent-mock" },
     { "path": "./packages/subagent/tool-subagent" },
@@ -80,6 +85,8 @@
     { "path": "./packages/subagent/subagent-spawn" },
     { "path": "./packages/subagent/subagent-fork" },
     { "path": "./packages/subagent/subagent-acp" },
+    { "path": "./packages/tasks/tasks" },
+    { "path": "./packages/tasks/tool-tasks" },
     { "path": "./packages/workflow/workflow" },
     { "path": "./packages/workflow/workflow-workerthread" },
     { "path": "./packages/workflow/tool-workflow" },
@@ -89,6 +96,7 @@
     { "path": "./packages/cordis/tool-cordis" },
     { "path": "./packages/hooks/hook-protocol" },
     { "path": "./packages/hooks/hooks-claude" },
-    { "path": "./packages/hooks/hooks-codex" }
+    { "path": "./packages/hooks/hooks-codex" },
+    { "path": "./packages/mcp/mcp-client" }
   ]
 }