fix(cli): remove MCP server mode

[chaliy]

What

Remove the Bashkit CLI MCP server mode and remaining current-behavior MCP references from docs, specs, skills, and site content.

Why

The CLI should expose one-shot command/script execution and interactive REPL only. Removing MCP keeps the runtime surface smaller and avoids documenting unsupported server mode.

How

• Delete the CLI MCP module and dispatch path.
• Treat bashkit mcp as an ordinary script-path invocation, covered by regression test.
• Remove MCP sections from README, docs, skills, site copy, and scripted-tool specs.
• Update CLI docs for actual one-shot vs interactive execution limits.

Risk

• Low
• CLI users relying on bashkit mcp lose that entrypoint by design.

Checklist

• Tests added or updated
• Backward compatibility considered

Verification:

• cargo fmt --check
• cargo test -p bashkit-cli
• cargo test -p bashkit --features scripted_tool test_parse_flags_pair_array_of_objects_repeated
• cargo test -p bashkit --features scripted_tool test_parse_flags_array_of_objects_json_then_pair_appends
• cargo run -p bashkit-cli -- -c 'echo ok'
• cargo run -p bashkit-cli -- mcp
• just pre-pr

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	bashkit	f677f75	Commit Preview URL	May 07 2026, 11:24 PM