feat: migrate all plugins into monorepo

.gitignore

@@ -36,8 +36,5 @@ ehthumbs.db
 # Secrets (contains API tokens)
 config_secrets.json
 
-# Don't track plugin code (they're in individual repos now)
-plugins/*/
-
-# Keep the plugins README
-!plugins/README.md
+# Secrets (plugin-level)
+plugins/**/config_secrets.json

CLAUDE.md

@@ -0,0 +1,46 @@
+# LEDMatrix Plugins Monorepo
+
+## Structure
+- `plugins/<plugin-id>/` — Each plugin's source code, manifest, config schema, and README
+- `plugins.json` — Central registry consumed by the LEDMatrix plugin store
+- `update_registry.py` — Syncs `plugins.json` from local plugin manifests
+
+## Plugin Version Workflow
+
+**IMPORTANT:** When modifying any plugin, you MUST bump its version. This is how users receive updates — the LEDMatrix plugin store compares `manifest.json` version against `plugins.json` latest_version.
+
+### Steps for every plugin change:
+1. Make your code changes in `plugins/<plugin-id>/`
+2. Bump `version` in `plugins/<plugin-id>/manifest.json` (semver: major.minor.patch)
+3. Run `python update_registry.py` to sync `plugins.json`
+4. Commit both the plugin changes AND the updated `plugins.json`
+
+### Version bump guidelines:
+- **Patch** (1.0.0 → 1.0.1): Bug fixes, minor text changes
+- **Minor** (1.0.0 → 1.1.0): New features, config schema additions
+- **Major** (1.0.0 → 2.0.0): Breaking config changes, major rewrites
+
+### If you forget to bump the version:
+Users will NOT receive the update. The store uses version comparison, not git commits.
+
+## Plugin Manifest Required Fields
+Every `plugins/<id>/manifest.json` must have:
+- `id` — Plugin identifier (must match directory name)
+- `name` — Human-readable display name
+- `version` — Semver string (e.g., "1.2.3")
+- `class_name` — Python class name in manager.py
+- `display_modes` — Array of supported display modes
+
+## Registry Format
+`plugins.json` entries for monorepo plugins use:
+- `repo`: `https://github.com/ChuckBuilds/ledmatrix-plugins`
+- `plugin_path`: `plugins/<plugin-id>`
+- `branch`: `main`
+- `latest_version`: Synced from manifest by `update_registry.py`
+
+Third-party plugins keep their own `repo` URL and empty `plugin_path`.
+
+## Scripts
+- `python update_registry.py` — Update plugins.json from manifests
+- `python update_registry.py --dry-run` — Preview without writing
+- `scripts/archive_old_repos.sh` — Archive old individual repos (one-time, use `--apply`)