feat(PROJ-17): Admin Dashboard Systemauslastung immer anzeigen

- Systemauslastungs-Sektion wird immer gerendert (nicht nur bei Erfolg)
- Fehlermeldung wenn /api/admin/system/stats nicht erreichbar ist
- Feature-Status auf In Review gesetzt

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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# AI Coding Starter Kit
# archivmail
> Build production-ready web apps faster with AI-powered Skills handling Requirements, Architecture, Development, QA, and Deployment.
Selbst gehostetes Mail-Archiv-System für Unternehmen. E-Mails werden aus IMAP, SMTP und EML/MBOX-Quellen importiert, volltext-indexiert (Xapian) und verschlüsselt archiviert.
This template uses [Claude Code](https://docs.anthropic.com/en/docs/claude-code) with modern Skills, Rules, and Sub-Agents to provide a complete AI-powered development workflow.
## Features
## Quick Start
- Import via IMAP, SMTP-Journaling und EML/MBOX-Upload
- Volltext-Suche über Xapian
- AES-256-GCM-Verschlüsselung der archivierten Mails
- Anhang-Deduplizierung
- Rollenmodell: `user`, `auditor`, `admin`
- Audit-Log (PostgreSQL + Append-only Logdatei)
### 1. Clone & Install
## Installation
```bash
git clone https://github.com/YOUR_USERNAME/ai-coding-starter-kit.git my-project
cd my-project
npm install
# Systembenutzer anlegen
useradd -r -s /sbin/nologin archivmail
# Verzeichnisse anlegen
mkdir -p /etc/archivmail
mkdir -p /var/archivmail/store
mkdir -p /var/archivmail/astore
mkdir -p /var/lib/archivmail/xapian
mkdir -p /var/log/archivmail
# Berechtigungen setzen
chown -R archivmail:archivmail /var/archivmail /var/lib/archivmail /var/log/archivmail
# Encryption Key generieren
openssl rand -base64 32 > /etc/archivmail/keyfile
chmod 400 /etc/archivmail/keyfile
chown archivmail:archivmail /etc/archivmail/keyfile
# Konfiguration
cp config.example.yml /etc/archivmail/config.yml
# config.yml anpassen (Datenbank, SMTP-Port, etc.)
# Systemd-Service aktivieren
cp archivmail.service /lib/systemd/system/
systemctl daemon-reload
systemctl enable --now archivmail
```
### 2. (Optional) Supabase Setup
If you need a backend:
1. Create Supabase Project: [supabase.com](https://supabase.com)
2. Copy `.env.local.example` to `.env.local`
3. Add your Supabase credentials
4. Uncomment the Supabase client in `src/lib/supabase.ts`
Skip this step if you're building frontend-only (landing pages, portfolios, etc.)
### 3. Start Development
```bash
npm run dev
```
Open [http://localhost:3000](http://localhost:3000) in your browser.
### 4. Initialize Your Project
Open Claude Code and describe your project. The `/requirements` skill automatically detects that this is a fresh project and enters **Init Mode**:
## Verzeichnisstruktur
```
/requirements I want to build a project management tool for small teams
where users can create projects, assign tasks, and track progress.
/etc/archivmail/
├── config.yml # Hauptkonfiguration
└── keyfile # AES-256-GCM Key (chmod 400)
/var/archivmail/
├── store/ # Mailkörper (.m, verschlüsselt)
│ └── <server_id>/<customer_id>/<hash>/xxxxx.m
└── astore/ # Anhänge dedupliziert (verschlüsselt)
└── <hash>
/var/lib/archivmail/
└── xapian/ # Volltext-Index
/var/log/archivmail/
└── audit.log # Audit-Log (JSON Lines, append-only)
```
The skill will:
1. Ask interactive questions to clarify your vision, target users, and MVP scope
2. Create your **Product Requirements Document** (`docs/PRD.md`)
3. Break the project into individual features (Single Responsibility)
4. Create all **feature specs** (`features/PROJ-1.md`, `PROJ-2.md`, etc.)
5. Update **feature tracking** (`features/INDEX.md`)
6. Recommend which feature to build first
## Standard-Zugangsdaten
You don't need to put everything in the first prompt - a brief description is enough. The skill asks follow-up questions interactively.
> **Wichtig:** Passwörter nach dem ersten Login ändern!
### 5. Build Features
| Benutzer | Passwort | Rolle |
|----------|----------|-------|
| `admin@archivmail` | `archivmailrockz` | Admin (Konfiguration, Nutzerverwaltung) |
| `auditor@archivmail` | `archivmailrockz` | Auditor (alle E-Mails + Audit-Log) |
After project initialization, build features one at a time using skills:
### Rollenübersicht
```
/architecture Design the tech approach for features/PROJ-1-user-auth.md
/frontend Build the UI for features/PROJ-1-user-auth.md
/backend Build the API for features/PROJ-1-user-auth.md
/qa Test features/PROJ-1-user-auth.md
/deploy Deploy to Vercel
```
| Rolle | E-Mails (eigene) | E-Mails (alle) | Audit-Log | Konfiguration |
|-------|:-:|:-:|:-:|:-:|
| `user` | ✅ | ❌ | ❌ | ❌ |
| `auditor` | ✅ | ✅ | ✅ | ❌ |
| `admin` | ❌ | ❌ | ❌ | ✅ |
Each skill suggests the next step when it finishes. Handoffs are always user-initiated.
## Technologie
To add more features later, run `/requirements` again - it detects the existing PRD and adds a single feature.
| Komponente | Technologie |
|-----------|-------------|
| Backend | Go |
| Datenbank | PostgreSQL |
| Volltext-Index | Xapian |
| Verschlüsselung | AES-256-GCM |
| Webserver | eingebettet (Go net/http) |
---
## Lizenz
## Available Skills
| Skill | Command | What It Does |
|-------|---------|-------------|
| Requirements Engineer | `/requirements` | Creates feature specs with user stories, acceptance criteria, edge cases |
| Solution Architect | `/architecture` | Designs PM-friendly tech architecture (no code, only high-level design) |
| Frontend Developer | `/frontend` | Builds UI with React, Tailwind CSS, and shadcn/ui |
| Backend Developer | `/backend` | Builds APIs, database schemas, RLS policies with Supabase |
| QA Engineer | `/qa` | Tests features against acceptance criteria + security audit |
| DevOps | `/deploy` | Deploys to Vercel with production-ready checks |
| Help | `/help` | Context-aware guide: shows where you are and what to do next |
### How Skills Work
- **Skills** are defined in `.claude/skills/` and auto-discovered by Claude Code
- **Rules** in `.claude/rules/` are auto-applied based on file context (no manual loading)
- **Sub-Agents** run heavy tasks (frontend, backend, QA) in isolated contexts for cost efficiency
- **CLAUDE.md** provides project context automatically at every session start
---
## Development Workflow
```
1. Define /requirements --> Feature spec in features/PROJ-X.md
2. Design /architecture --> Tech design added to feature spec
3. Build /frontend --> UI components implemented
/backend --> APIs + database (if needed)
4. Test /qa --> Test results added to feature spec
5. Ship /deploy --> Deployed to Vercel
```
### Feature Tracking
Features are tracked in `features/INDEX.md`:
| ID | Feature | Status | Spec |
|----|---------|--------|------|
| PROJ-1 | User Login | Deployed | [Spec](features/PROJ-1-user-login.md) |
| PROJ-2 | Dashboard | In Progress | [Spec](features/PROJ-2-dashboard.md) |
Every skill reads this file at start and updates it when done, preventing duplicate work.
---
## Tech Stack
| Category | Tool | Why? |
|----------|------|------|
| **Framework** | Next.js 16 | React + Server Components + App Router |
| **Language** | TypeScript | Type safety |
| **Styling** | Tailwind CSS | Utility-first CSS |
| **UI Library** | shadcn/ui | Copy-paste, customizable components |
| **Backend** | Supabase (optional) | PostgreSQL + Auth + Storage + Realtime |
| **Deployment** | Vercel | Zero-config Next.js hosting |
| **Validation** | Zod | Runtime type validation |
---
## Project Structure
```
ai-coding-starter-kit/
+-- CLAUDE.md <-- Auto-loaded project context
+-- .claude/
| +-- settings.json <-- Team permissions (committed)
| +-- settings.local.json <-- Personal overrides (gitignored)
| +-- rules/ <-- Auto-applied coding rules
| | +-- general.md Git workflow, feature tracking
| | +-- frontend.md shadcn/ui, component standards
| | +-- backend.md RLS, validation, queries
| | +-- security.md Secrets, headers, auth
| +-- skills/ <-- Invocable workflows (/command)
| | +-- requirements/SKILL.md /requirements
| | +-- architecture/SKILL.md /architecture
| | +-- frontend/SKILL.md /frontend (runs as sub-agent)
| | +-- backend/SKILL.md /backend (runs as sub-agent)
| | +-- qa/SKILL.md /qa (runs as sub-agent)
| | +-- deploy/SKILL.md /deploy
| | +-- help/SKILL.md /help
| +-- agents/ <-- Sub-agent configs
| +-- frontend-dev.md Model, tools, limits
| +-- backend-dev.md
| +-- qa-engineer.md
+-- features/ <-- Feature specifications
| +-- INDEX.md Status tracking
| +-- README.md Spec format documentation
+-- docs/
| +-- PRD.md <-- Product Requirements Document
| +-- production/ <-- Production setup guides
| +-- error-tracking.md Sentry setup (5 min)
| +-- security-headers.md XSS/Clickjacking protection
| +-- performance.md Lighthouse, optimization
| +-- database-optimization.md Indexing, N+1, caching
| +-- rate-limiting.md Upstash Redis
+-- src/
| +-- app/ <-- Pages (Next.js App Router)
| +-- components/
| | +-- ui/ <-- shadcn/ui components (35+ installed)
| +-- hooks/ <-- Custom React hooks
| +-- lib/ <-- Utilities
+-- public/ <-- Static files
```
---
## Getting Started
### 1. Fill Out Your PRD
Define your product vision in `docs/PRD.md`:
- What are you building and why?
- Who are the target users?
- What features are on the roadmap?
### 2. Build Your First Feature
Run `/requirements` with your feature idea. The skill will:
- Ask interactive questions to clarify requirements
- Create a feature spec in `features/PROJ-1-name.md`
- Update `features/INDEX.md` with the new feature
- Suggest running `/architecture` as the next step
### 3. Add shadcn/ui Components (as needed)
35+ components are pre-installed. Add more as needed:
```bash
npx shadcn@latest add [component-name]
```
### 4. Production Setup (first deployment)
When you're ready to deploy, the `/deploy` skill guides you through:
- Vercel setup and deployment
- Error tracking with Sentry
- Security headers configuration
- Performance monitoring with Lighthouse
See `docs/production/` for detailed setup guides.
---
## How It Works Under the Hood
### Skills (`.claude/skills/`)
Each skill is a structured workflow that Claude Code discovers automatically. Skills can run inline (in the main conversation) or as forked sub-agents (isolated context window).
| Skill | Execution | Why? |
|-------|-----------|------|
| `/requirements` | Inline | Needs live interaction with user |
| `/architecture` | Inline | Short output, user reviews in real-time |
| `/frontend` | Sub-agent (forked) | Heavy file editing, lots of output |
| `/backend` | Sub-agent (forked) | Heavy file editing, SQL, API code |
| `/qa` | Sub-agent (forked) | Systematic testing, lots of output |
| `/deploy` | Inline | Deployment needs user oversight |
| `/help` | Inline | Quick status check and guidance |
### Rules (`.claude/rules/`)
Coding standards that are auto-applied based on which files Claude is working with. No manual loading needed.
### Sub-Agent Configs (`.claude/agents/`)
Lightweight configurations that define model, tool access, and turn limits for forked skills.
### CLAUDE.md
Auto-loaded at every session start. Contains tech stack, conventions, and references to PRD and feature index.
---
## Context Engineering
AI agents work best with clean, structured context - not longer prompts. This template is designed around these principles:
### State lives in files, not in memory
Every skill reads `features/INDEX.md` and the relevant feature spec at start. After context compaction or a new session, nothing is lost - the agent simply re-reads the files. Progress tracking, acceptance criteria, and tech designs all live in markdown files, not in the conversation.
### Context is layered
Not everything is loaded at once. Information is layered by relevance:
| Layer | What | When loaded |
|-------|------|-------------|
| `CLAUDE.md` | Tech stack, conventions, commands | Every session (auto) |
| `.claude/rules/` | Coding standards | When editing matching files (auto) |
| Skill `SKILL.md` | Workflow instructions | When skill is invoked |
| Feature spec | Requirements, AC, tech design | On demand (skill reads it) |
| `docs/production/` | Deployment guides | Only when referenced |
### Context is isolated
Heavy implementation skills (`/frontend`, `/backend`, `/qa`) run as **forked sub-agents** with their own context window. Research noise from one skill doesn't pollute another. Each fork starts clean and loads only what it needs.
### Context recovery is built in
All forked skills include a **Context Recovery** section: if the context is compacted mid-task, the agent re-reads the feature spec, checks `git diff` for progress, and continues without restarting or duplicating work.
### Always read, never guess
A global rule (`rules/general.md`) enforces: always read a file before modifying it, never assume contents from memory, verify import paths and API routes by reading. This prevents hallucinated code references - the most common source of AI coding errors.
---
## Customization for Your Team
This template is designed as a starting point. Customize it for your team:
1. **Edit CLAUDE.md** - Add your project-specific conventions and build commands
2. **Edit docs/PRD.md** - Define your product vision and roadmap
3. **Edit .claude/rules/** - Adjust coding standards for your team
4. **Edit .claude/skills/** - Modify workflows to match your process
5. **Edit .claude/settings.json** - Configure team permissions
---
## Production Guides
Standalone guides in `docs/production/`:
| Guide | Setup Time | What It Does |
|-------|-----------|-------------|
| [Error Tracking](docs/production/error-tracking.md) | 5 min | Sentry integration for automatic error capture |
| [Security Headers](docs/production/security-headers.md) | 2 min | XSS, Clickjacking, MIME sniffing protection |
| [Performance](docs/production/performance.md) | 10 min | Lighthouse checks, image optimization, caching |
| [Database Optimization](docs/production/database-optimization.md) | 15 min | Indexing, N+1 prevention, query optimization |
| [Rate Limiting](docs/production/rate-limiting.md) | 10 min | Upstash Redis for API abuse prevention |
---
## Scripts
```bash
npm run dev # Development server (localhost:3000)
npm run build # Production build
npm run start # Production server
npm run lint # ESLint
```
---
## Author
Created by **Alex Sprogis** AI Product Engineer & Content Creator.
- [YouTube](https://www.youtube.com/@alex.sprogis)
- [Website](https://alexsprogis.de)
---
## License
MIT License - feel free to use for your projects!
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