feat(distribution): add Gittensory custom agent profiles

[JSONbored]

Parent roadmap: #127
Parent phase: #238

Goal

Add Gittensory custom agent profiles so supported coding-agent environments can use the MCP package with the right instructions and safety boundaries out of the box.

Requirements

• Add profiles for miner planner, maintainer queue triage, and repo-owner intake.
• Wire profiles to Gittensory MCP usage where supported.
• Keep all profiles human-approved: they may plan, explain, draft, and prepare packets, but they must not autonomously open PRs, post comments, close issues, label, merge, or publish public GitHub output.
• Document installation and expected boundaries in the launch/docs path.

Acceptance criteria

• Profiles are concise, distinct, and usable by supported clients.
• Each profile includes explicit public/private safety language.
• Profiles do not ask for wallet, hotkey, coldkey, private keys, or tokens.
• Docs explain how to install and when not to use them.

Validation expected

• Static validation for profile files if added.
• Docs/link check where applicable.
• npm run test:ci if code/config is touched.