feat: enrich SITE.md with structure, roles, plugin descriptions, REST namespaces

[chubes4]

Summary

Completes the SITE.md enrichment requested in #872. Builds on #875 (which added post counts, taxonomy details, language, timezone, permalinks).

• Site Structure — key pages (front page, blog page, privacy page from wp_options), homepage display mode, registered nav menus with assigned menu names
• User Roles — all roles listed, custom roles marked. Section only appears when custom roles exist.
• Plugin descriptions — brief descriptions from plugin headers, truncated to 120 chars
• REST API — custom namespaces (filters out wp/, oembed/, wp-site-health/)
• New invalidation hooks — page_on_front, page_for_posts, show_on_front option changes + menu CRUD hooks

Sample output

# SITE

## Identity
- **name:** chubes.net
- **url:** https://chubes.net
- **theme:** Chubes
- **language:** en_US
- **timezone:** America/Chicago
- **permalinks:** /%postname%/
- **multisite:** false

## Site Structure
- **Front page:** Home (ID 2)
- **Blog page:** Blog (ID 10)
- **Privacy page:** Privacy Policy (ID 3)
- **Homepage displays:** static page

### Menus
- **Primary Menu** (primary): Main Navigation
- **Footer Menu** (footer): Footer Links

## Post Types
| Label | Slug | Published | Type |
|-------|------|-----------|------|
| Posts | post | 42 | flat |
| Pages | page | 12 | hierarchical |

## Taxonomies
| Label | Slug | Terms | Type | Post Types |
|-------|------|-------|------|------------|
| Categories | category | 8 | hierarchical | post |
| Tags | post_tag | 24 | flat | post |

## User Roles
- Administrator (`administrator`)
- Editor (`editor`)
- Agent (`agent`) (custom)

## Active Plugins
- **FluentSMTP** — WP Mail SMTP plugin with various SMTP service integrations
- **DocSync** — Sync documentation from GitHub repositories to WordPress
- **Yoast SEO** — The first true all-in-one SEO solution for WordPress...

## REST API
- **Custom namespaces:** docsync/v1, datamachine/v1, yoast/v1

Testing

• php -l passes
• PHPUnit: 906 tests, same pass/fail as main

Closes #872.

[github-actions]

Homeboy Results — data-machine

Lint

Failure Digest

Lint Failure Digest

• No structured lint details available.
• Full lint log: https://github.com/Extra-Chill/data-machine/actions/runs/23277817228

Autofixability classification

• Overall: human_needed
• Autofix enabled: no
• Autofix attempted this run: no
• Human-needed failed commands:
  • lint
• Failed commands with available automated fixes:
  • lint
• Automated fixes are disabled for this step. Commands with available fix support in this run: lint

Machine-readable artifacts

• homeboy-lint-summary.json
• homeboy-test-failures.json
• homeboy-audit-summary.json
• homeboy-autofixability.json

⚡ Scope: changed files only

❌ lint (changed files only)

Test

⚡ Scope: changed files only

✅ test (changed files only)

Audit

⚡ Scope: changed files only

✅ audit (changed files only)

Tooling versions

• Homeboy CLI: homeboy 0.81.1+b97c8215
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: unknown
• Action: Extra-Chill/homeboy-action@v1

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Homeboy Action v1