feat: implement basic HTTP gateway

[Rajkoli145]

Hey! Just finished setting up the foundations for the MoltClaw gateway.

Decided to roll with Hono since it's super lean and fits the cloud-edge vibe we're going for. This PR handles:

• Basic server setup on port 3000 (configurable)
• Health check endpoint for monitoring
• Stubs for fleet registration and heartbeats to get the coordination layer started
• Standard CORS and logging middleware

Local tests look good. Ready to merge! 🐉

Closes #2

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Note

Medium Risk
Introduces a new HTTP entrypoint and public endpoints (with permissive CORS), which can affect deployment/runtime behavior despite minimal business logic.

Overview
Adds an initial Hono-based HTTP gateway in src/index.ts, including global logging + CORS middleware, a /healthz probe, a root text endpoint, and stubbed fleet coordination routes (POST /api/v1/fleet/register and POST /api/v1/fleet/heartbeat).

Adds project tooling/config for formatting and linting (.prettierrc, .prettierignore, eslint.config.js) and updates package.json/package-lock.json to include Hono runtime deps plus ESLint/Prettier/TS/Vitest dev tooling (also fixing description encoding and normalizing metadata formatting).

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