refactor: adopt commander, zod, picomatch, and smol-toml

[theonly1me]

What changed

• Adopt commander for CLI option and argument parsing across src/cli/eval.ts, src/cli/transferEval.ts, and src/cli/run.ts.
• Replace hand-rolled schema validation in src/config/schema.ts, src/config/managed.ts, src/config/repo.ts, and src/distill/schema.ts with zod.
• Use picomatch for glob pattern matching in src/signal/origin.ts.
• Use smol-toml for parsing and stringifying configuration in src/config/index.ts.
• Validate hook payload structure in src/cli/hookInput.ts using zod.

Why

Hand-rolled argument parsing, wildcard matching, and schema checks added boilerplate across CLI and configuration modules. Using widely adopted packages simplifies these modules while preserving existing behavior and error contracts.

How to verify

bun run typecheck
bun run lint
bun test