fix(mock): support Lark SDK capture

[vincentkoc]

Summary

• provide the Lark SDK interceptor and HTTP mock surface used by the Feishu bundle during runtime capture
• preserve dynamically discovered named Lark SDK exports
• add regression coverage for namespace and named Lark SDK imports

Verification

• node --test test/inspector.test.js
• npm test
• npm run release:contents
• captured the published @openclaw/feishu@2026.6.8 bundle with the mocked SDK; channel, hook, and tool registrations were recorded
• autoreview --mode local (Codex, clean)

[vincentkoc]

Land-ready.

• The mock now models Feishu's Lark HTTP interceptor surface and preserves dynamically discovered named exports.
• The published @openclaw/feishu@2026.6.8 bundle captured successfully, recording its channel registration, hooks, and tool registration.

Verification:

• node --test test/inspector.test.js
• npm test (190 passing)
• npm run release:contents
• autoreview --mode local (Codex, clean)