[bug] Worktrees fail to bootstrap ai/services.mjs — gitignored config.mjs + symlink namespace collision

Context

Fresh git worktrees created under .claude/worktrees/<name>/ (Claude Code's default) cannot run any script that imports ai/services.mjs. Reproducer:

cd .claude/worktrees/<some-name>
node -e "import('./ai/services.mjs')"
<h1 class="neo-h1" data-record-id="3">Error [ERR_MODULE_NOT_FOUND]: Cannot find module &#39;.../ai/mcp/server/github-workflow/config.mjs&#39;</h1>

Root cause: .gitignore excludes ai/mcp/server/*/config.mjs (these are copy-from-template files for local overrides). Worktrees inherit the tracked tree but none of the ignored files, so every config.mjs is missing.

Attempting symlinks from the main checkout triggers a SECOND bug:

ln -s /main/checkout/.../config.mjs ai/mcp/server/<srv>/config.mjs
<h1 class="neo-h1" data-record-id="4">Running any Playwright test that imports via the service chain:</h1>

<h1 class="neo-h1" data-record-id="5">Error: Namespace collision in unitTestMode for Neo.core.Base</h1>

The symlinked config.mjs imports Base.mjs via a relative path, which Node resolves against the real (canonical) path of the symlink target — the main checkout's src/core/Base.mjs. When the worktree-local src/core/Base.mjs ALSO gets imported (by the test itself), Neo.setupClass sees the same namespace registered from two different file paths and throws under unitTestMode: true. Copies (not symlinks) work because Node resolves relatives against the copy's own location.

Impact

Every Claude Code session in a new worktree that touches ai/scripts/, ai/services.mjs, or any SDK-consuming code hits this wall. Discovered during #10090 and #10092 work — fixed both times by manually copying four config.mjs files. That's institutional tax per session.

The Ask

Add a bootstrap script and a startup note:

1. ai/scripts/bootstrapWorktree.mjs — copies ai/mcp/server/{github-workflow,knowledge-base,memory-core,neural-link}/config.mjs from the repo's main checkout (resolved via git worktree list --porcelain) into the current worktree. Idempotent; skips files that already exist. Refuses to run if CWD is the main checkout itself.

2. AGENTS_STARTUP.md §Harness-Memory-Wiring — append a Claude Code note:

   Worktree bootstrap: ai/mcp/server/*/config.mjs is gitignored and does not travel into new worktrees. Before running any SDK-consuming script or test-unit that imports ai/services.mjs, run node ai/scripts/bootstrapWorktree.mjs. Do NOT use symlinks — they break under unitTestMode due to realpath-based resolution of Base.mjs.

Acceptance Criteria

• ai/scripts/bootstrapWorktree.mjs — resolves main checkout via git, copies four config.mjs files, idempotent
• Refuses to run when CWD is the main checkout (no-op safety)
• Playwright spec verifying copy-behavior against a fake main-checkout tmp dir
• AGENTS_STARTUP.md updated with the worktree bootstrap note under Harness-Memory-Wiring

Origin Session ID

d9eb5e76-5430-45f7-b3ea-8600664d28f9