docs: update docs for tools.agent/tools.subagent and Navi Code TUI ...

- profiles.md: document tools.agent/tools.subagent structure, deprecate enabled_tools
- tools.md: move web tools to MCP section, fix mcp__navi-web__* names, add create_mcp_server/test_mcp_tool/mcp_status/recall tools
- api.md: update /agents/profiles and /admin/profiles/{id} response schemas, fix MCP examples
- navi_code.md: correct navi_code tool list (MCP disabled)
- navi_code_cli.md: add /thinking, /compact, correct TUI layout
- index.md: add navi_code, terminal client, pydantic-settings
- testing.md: refresh test directory layout, replace stale coverage roadmap
- agent.md: mention tools.agent/tools.subagent in loop

Co-Authored-By: Claude <noreply@anthropic.com>

Update Navi Code profile: config, prompts, docs, and env example ...

- Sync navi_code profile tools with current codebase (memory, schedule_recall, manage_recall, switch_profile, list_profiles)

- Remove image_view and MCP tools from navi_code; keep local terminal focus

- Update system prompt and persona for terminal-first coding assistant

- Update docs/navi_code.md, docs/profiles.md, docs/config.md for new tool set

- Refresh .env.navi_code.example with current config variables

- Remove stale CLI prototype directories (cli/, navi_code_cli/)

Docs: actualize navi_code tool lists and key_tools ...

- docs/navi_code.md and docs/profiles.md now correctly list native tools,
  MCP navi-web tools, and excluded tools.
- image_view is documented as enabled for the agent (loads and describes
  images for the model, not shown to the user).
- web_search/http_request are documented as MCP navi-web tools, not native
  disabled tools.
- navi/profiles/navi_code/config.json: updated full_description.key_tools to
  match actual resolved tool names.

Tests: 459 passed, 1 skipped.

Co-Authored-By: Claude <noreply@anthropic.com>

Navi Code: Phase 2 — CLI terminal client, tests, docs ...

- Add clients/terminal package: config, state, REST API wrappers, WebSocket
  client, renderer, and click-based interactive CLI.
- Wire navi-code console script via pyproject.toml.
- Add unit and WebSocket integration tests for the terminal client.
- Update docs/profiles.md, docs/config.md, README.md with navi_code profile
  and default-profile instructions.
- Add docs/navi_code.md setup guide and docs/navi_code_cli.md usage reference.
- Fix lint in new test files and test_auth_disabled.py.

Tested: 459 passed, 1 skipped (excluded unrelated websocket test).

Co-Authored-By: Claude <noreply@anthropic.com>