Resolve multi-word CLI verb dispatch

[kriptoburak]

Summary

• Resolve CLI dispatch by the longest matching verb id prefix.
• Keep exact one-token commands working.
• Add tests for multi-word ids and longest-match precedence.

Why

JSON-RPC already resolves tokenized multi-word ids, but CLI dispatch only looked up the first argv token. A registry verb such as plan session could not be run as separate shell words.

Validation

• bun test
• bun run build
• bunx jsr publish dry run with slow-type allowance
• npm pack dry run
• git diff check