Bench 1: the task board extracted as its own distribution

Everything core from cicero-pas's .task-manager, with instance data
reduced to skeleton: empty stage directories, the task template, empty
local/ scaffolding, and a README covering install (clone into
.task-manager/, vendored on purpose) and update (update.sh replaces core
wholesale; local/ and tasks/ survive).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

install.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+"""Wire the task manager into the project it sits in.
+
+    python3 .task-manager/install.py             # apply (idempotent)
+    python3 .task-manager/install.py --dry-run   # report only, change nothing
+
+Vendor-specific wiring belongs to the configured agent adapter: this script
+resolves the adapter (BOARD_AGENT_ADAPTER in manager/local/.env, default
+"claude"; local/adapters/ overrides core/adapters/) and runs its `wire`
+executable against the project root. Safe to run any time — after dropping
+.task-manager/ into a new repo, and after every update.sh.
+"""
+
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+TM = Path(__file__).resolve().parent
+PROJECT = TM.parent
+LOCAL = TM / "manager" / "local"
+CORE = TM / "manager" / "core"
+
+
+def adapter_name() -> str:
+    if os.environ.get("BOARD_AGENT_ADAPTER"):
+        return os.environ["BOARD_AGENT_ADAPTER"]
+    env_file = LOCAL / ".env"
+    if env_file.is_file():
+        for line in env_file.read_text(encoding="utf-8").splitlines():
+            key, _, value = line.strip().partition("=")
+            if key.strip() == "BOARD_AGENT_ADAPTER" and value.strip():
+                return value.strip().strip("'\"")
+    return "claude"
+
+
+def main() -> int:
+    name = adapter_name()
+    for base in (LOCAL / "adapters", CORE / "adapters"):
+        wire = base / name / "wire"
+        if wire.is_file():
+            return subprocess.call(
+                [sys.executable, str(wire), str(PROJECT), *sys.argv[1:]])
+    print(f"agent adapter '{name}' has no wire script — looked in "
+          f"{LOCAL / 'adapters' / name} and {CORE / 'adapters' / name}.")
+    return 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())