docs: improve doucmentation

improve doucmentation and fix small store changes

docs-site/docs/developer/contributing.md

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+---
+sidebar_position: 1
+---
+
+# Contributing
+
+MetoYou is an npm-managed monorepo.
+
+## Packages
+
+| Path | Purpose |
+| --- | --- |
+| `toju-app/` | Angular renderer, chat client, voice UI, plugin runtime. |
+| `electron/` | Electron main process, preload bridge, local database, local REST API, docs host. |
+| `server/` | Node/TypeScript signaling server and server-directory HTTP API. |
+| `website/` | Angular marketing site. |
+| `docs-site/` | Docusaurus documentation site. |
+| `e2e/` | Playwright browser and WebRTC tests. |
+
+## Setup
+
+Install root dependencies:
+
+```bash
+npm install
+```
+
+Install server dependencies when working on the signaling server:
+
+```bash
+cd server
+npm install
+```
+
+## Development Commands
+
+From the repository root:
+
+```bash
+npm run dev
+```
+
+Useful focused commands:
+
+```bash
+npm run build
+npm run build:electron
+npm run build:docs
+npm run server:build
+npm run lint
+npm run test
+npm run test:e2e -- tests/chat-dm-flow.spec.ts
+```
+
+Run the Docusaurus dev server:
+
+```bash
+cd docs-site
+npm install
+npm run start
+```
+
+Build static docs for Electron packaging:
+
+```bash
+npm run build:docs
+```
+
+## Repository Rules
+
+- Keep changes inside the package that owns the behavior.
+- Do not edit generated output in `dist/`, `dist-electron/`, `dist-server/`, `server/dist/`, `.angular/`, or `node_modules/`.
+- Renderer-facing Electron capabilities must stay aligned across implementation, preload, and renderer bridge types.
+- Signal-server plugin support stores metadata only. Plugin execution belongs to the client runtime.
+- Update this documentation when user workflows, plugin APIs, REST routes, DOM structure, or development commands change.
+
+## Documentation Checklist
+
+When you change a related area, update these pages:
+
+| Change | Docs to check |
+| --- | --- |
+| Voice UI or settings | User Guide: Voice Channels and Calls, Developer Guide: App Pages and DOM Structure. |
+| Text channels, messages, DMs | User Guide: Text and Direct Messages, plugin message API pages. |
+| Plugin manifest/API/runtime | Plugin Development pages and LLM Plugin Builder Guide. |
+| Local REST API routes or schemas | Developer Guide: Local REST API and `electron/api/openapi.ts`. |
+| Docusaurus hosting | Developer Guide: Docusaurus Site and Desktop and Local API. |