Phase 0 scaffold: SvelteKit 5 + Drizzle + auth + storage interface

Stack matches sibling buildfor_life_* apps: SvelteKit 5 with adapter-node,
Svelte 5 runes, TypeScript, Tailwind v4 with @theme inline tokens,
PostgreSQL via Drizzle ORM, Argon2id sessions via @node-rs/argon2 and
@oslojs/crypto, EasyMDE ready for wiki/decision markdown, Sharp for
thumbnails.

Included in this commit:
- Config: package.json, svelte.config.js, vite.config.ts, tsconfig.json,
  drizzle.config.ts, .gitignore, .env.example, .gitattributes, .npmrc
- Tenancy schema: companies, users, company_users, sessions
  (10 enums pre-declared for the full domain so downstream migrations
   don't re-diff them; decision_scope widened to include asset +
   work_package per product decision)
- Auth: password hashing + SHA-256-hashed session cookies,
  session lifetime 30d with sliding renewal at T-15d,
  login + logout + session refresh in hooks
- Storage: StorageAdapter interface + LocalDiskStorage with HMAC-signed
  URLs served by /api/files, S3 drop-in with zero schema change
- UI shell: dark-mode bootstrap in app.html identical to siblings,
  sidebar (w-64, h-14 header, amber attention band pattern from repair),
  topbar with breadcrumbs, theme toggle with cross-tab sync via
  storage event, blue-600 primary, responsive drawer
- Routes: (app) authed group with auto-redirect to /login,
  (auth) login group, dashboard placeholder, error page, signed-file API
- Scripts: create-user script for bootstrapping first admin user
- Drizzle: initial migration generated (0000_init.sql)
- Shared agents and skills committed under .claude/; per-user
  permissions gitignored

Typecheck: 0 errors / 0 warnings across 555 files.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/skills/senior-backend/SKILL.md

@@ -0,0 +1,209 @@
+---
+name: senior-backend
+description: Comprehensive backend development skill for building scalable backend systems using NodeJS, Express, Go, Python, Postgres, GraphQL, REST APIs. Includes API scaffolding, database optimization, security implementation, and performance tuning. Use when designing APIs, optimizing database queries, implementing business logic, handling authentication/authorization, or reviewing backend code.
+---
+
+# Senior Backend
+
+Complete toolkit for senior backend with modern tools and best practices.
+
+## Quick Start
+
+### Main Capabilities
+
+This skill provides three core capabilities through automated scripts:
+
+```bash
+# Script 1: Api Scaffolder
+python scripts/api_scaffolder.py [options]
+
+# Script 2: Database Migration Tool
+python scripts/database_migration_tool.py [options]
+
+# Script 3: Api Load Tester
+python scripts/api_load_tester.py [options]
+```
+
+## Core Capabilities
+
+### 1. Api Scaffolder
+
+Automated tool for api scaffolder tasks.
+
+**Features:**
+- Automated scaffolding
+- Best practices built-in
+- Configurable templates
+- Quality checks
+
+**Usage:**
+```bash
+python scripts/api_scaffolder.py <project-path> [options]
+```
+
+### 2. Database Migration Tool
+
+Comprehensive analysis and optimization tool.
+
+**Features:**
+- Deep analysis
+- Performance metrics
+- Recommendations
+- Automated fixes
+
+**Usage:**
+```bash
+python scripts/database_migration_tool.py <target-path> [--verbose]
+```
+
+### 3. Api Load Tester
+
+Advanced tooling for specialized tasks.
+
+**Features:**
+- Expert-level automation
+- Custom configurations
+- Integration ready
+- Production-grade output
+
+**Usage:**
+```bash
+python scripts/api_load_tester.py [arguments] [options]
+```
+
+## Reference Documentation
+
+### Api Design Patterns
+
+Comprehensive guide available in `references/api_design_patterns.md`:
+
+- Detailed patterns and practices
+- Code examples
+- Best practices
+- Anti-patterns to avoid
+- Real-world scenarios
+
+### Database Optimization Guide
+
+Complete workflow documentation in `references/database_optimization_guide.md`:
+
+- Step-by-step processes
+- Optimization strategies
+- Tool integrations
+- Performance tuning
+- Troubleshooting guide
+
+### Backend Security Practices
+
+Technical reference guide in `references/backend_security_practices.md`:
+
+- Technology stack details
+- Configuration examples
+- Integration patterns
+- Security considerations
+- Scalability guidelines
+
+## Tech Stack
+
+**Languages:** TypeScript, JavaScript, Python, Go, Swift, Kotlin
+**Frontend:** React, Next.js, React Native, Flutter
+**Backend:** Node.js, Express, GraphQL, REST APIs
+**Database:** PostgreSQL, Prisma, NeonDB, Supabase
+**DevOps:** Docker, Kubernetes, Terraform, GitHub Actions, CircleCI
+**Cloud:** AWS, GCP, Azure
+
+## Development Workflow
+
+### 1. Setup and Configuration
+
+```bash
+# Install dependencies
+npm install
+# or
+pip install -r requirements.txt
+
+# Configure environment
+cp .env.example .env
+```
+
+### 2. Run Quality Checks
+
+```bash
+# Use the analyzer script
+python scripts/database_migration_tool.py .
+
+# Review recommendations
+# Apply fixes
+```
+
+### 3. Implement Best Practices
+
+Follow the patterns and practices documented in:
+- `references/api_design_patterns.md`
+- `references/database_optimization_guide.md`
+- `references/backend_security_practices.md`
+
+## Best Practices Summary
+
+### Code Quality
+- Follow established patterns
+- Write comprehensive tests
+- Document decisions
+- Review regularly
+
+### Performance
+- Measure before optimizing
+- Use appropriate caching
+- Optimize critical paths
+- Monitor in production
+
+### Security
+- Validate all inputs
+- Use parameterized queries
+- Implement proper authentication
+- Keep dependencies updated
+
+### Maintainability
+- Write clear code
+- Use consistent naming
+- Add helpful comments
+- Keep it simple
+
+## Common Commands
+
+```bash
+# Development
+npm run dev
+npm run build
+npm run test
+npm run lint
+
+# Analysis
+python scripts/database_migration_tool.py .
+python scripts/api_load_tester.py --analyze
+
+# Deployment
+docker build -t app:latest .
+docker-compose up -d
+kubectl apply -f k8s/
+```
+
+## Troubleshooting
+
+### Common Issues
+
+Check the comprehensive troubleshooting section in `references/backend_security_practices.md`.
+
+### Getting Help
+
+- Review reference documentation
+- Check script output messages
+- Consult tech stack documentation
+- Review error logs
+
+## Resources
+
+- Pattern Reference: `references/api_design_patterns.md`
+- Workflow Guide: `references/database_optimization_guide.md`
+- Technical Guide: `references/backend_security_practices.md`
+- Tool Scripts: `scripts/` directory

.claude/skills/senior-backend/references/api_design_patterns.md

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+# Api Design Patterns
+
+## Overview
+
+This reference guide provides comprehensive information for senior backend.
+
+## Patterns and Practices
+
+### Pattern 1: Best Practice Implementation
+
+**Description:**
+Detailed explanation of the pattern.
+
+**When to Use:**
+- Scenario 1
+- Scenario 2
+- Scenario 3
+
+**Implementation:**
+```typescript
+// Example code implementation
+export class Example {
+  // Implementation details
+}
+```
+
+**Benefits:**
+- Benefit 1
+- Benefit 2
+- Benefit 3
+
+**Trade-offs:**
+- Consider 1
+- Consider 2
+- Consider 3
+
+### Pattern 2: Advanced Technique
+
+**Description:**
+Another important pattern for senior backend.
+
+**Implementation:**
+```typescript
+// Advanced example
+async function advancedExample() {
+  // Code here
+}
+```
+
+## Guidelines
+
+### Code Organization
+- Clear structure
+- Logical separation
+- Consistent naming
+- Proper documentation
+
+### Performance Considerations
+- Optimization strategies
+- Bottleneck identification
+- Monitoring approaches
+- Scaling techniques
+
+### Security Best Practices
+- Input validation
+- Authentication
+- Authorization
+- Data protection
+
+## Common Patterns
+
+### Pattern A
+Implementation details and examples.
+
+### Pattern B
+Implementation details and examples.
+
+### Pattern C
+Implementation details and examples.
+
+## Anti-Patterns to Avoid
+
+### Anti-Pattern 1
+What not to do and why.
+
+### Anti-Pattern 2
+What not to do and why.
+
+## Tools and Resources
+
+### Recommended Tools
+- Tool 1: Purpose
+- Tool 2: Purpose
+- Tool 3: Purpose
+
+### Further Reading
+- Resource 1
+- Resource 2
+- Resource 3
+
+## Conclusion
+
+Key takeaways for using this reference guide effectively.

.claude/skills/senior-backend/references/backend_security_practices.md

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+# Backend Security Practices
+
+## Overview
+
+This reference guide provides comprehensive information for senior backend.
+
+## Patterns and Practices
+
+### Pattern 1: Best Practice Implementation
+
+**Description:**
+Detailed explanation of the pattern.
+
+**When to Use:**
+- Scenario 1
+- Scenario 2
+- Scenario 3
+
+**Implementation:**
+```typescript
+// Example code implementation
+export class Example {
+  // Implementation details
+}
+```
+
+**Benefits:**
+- Benefit 1
+- Benefit 2
+- Benefit 3
+
+**Trade-offs:**
+- Consider 1
+- Consider 2
+- Consider 3
+
+### Pattern 2: Advanced Technique
+
+**Description:**
+Another important pattern for senior backend.
+
+**Implementation:**
+```typescript
+// Advanced example
+async function advancedExample() {
+  // Code here
+}
+```
+
+## Guidelines
+
+### Code Organization
+- Clear structure
+- Logical separation
+- Consistent naming
+- Proper documentation
+
+### Performance Considerations
+- Optimization strategies
+- Bottleneck identification
+- Monitoring approaches
+- Scaling techniques
+
+### Security Best Practices
+- Input validation
+- Authentication
+- Authorization
+- Data protection
+
+## Common Patterns
+
+### Pattern A
+Implementation details and examples.
+
+### Pattern B
+Implementation details and examples.
+
+### Pattern C
+Implementation details and examples.
+
+## Anti-Patterns to Avoid
+
+### Anti-Pattern 1
+What not to do and why.
+
+### Anti-Pattern 2
+What not to do and why.
+
+## Tools and Resources
+
+### Recommended Tools
+- Tool 1: Purpose
+- Tool 2: Purpose
+- Tool 3: Purpose
+
+### Further Reading
+- Resource 1
+- Resource 2
+- Resource 3
+
+## Conclusion
+
+Key takeaways for using this reference guide effectively.

.claude/skills/senior-backend/references/database_optimization_guide.md

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+# Database Optimization Guide
+
+## Overview
+
+This reference guide provides comprehensive information for senior backend.
+
+## Patterns and Practices
+
+### Pattern 1: Best Practice Implementation
+
+**Description:**
+Detailed explanation of the pattern.
+
+**When to Use:**
+- Scenario 1
+- Scenario 2
+- Scenario 3
+
+**Implementation:**
+```typescript
+// Example code implementation
+export class Example {
+  // Implementation details
+}
+```
+
+**Benefits:**
+- Benefit 1
+- Benefit 2
+- Benefit 3
+
+**Trade-offs:**
+- Consider 1
+- Consider 2
+- Consider 3
+
+### Pattern 2: Advanced Technique
+
+**Description:**
+Another important pattern for senior backend.
+
+**Implementation:**
+```typescript
+// Advanced example
+async function advancedExample() {
+  // Code here
+}
+```
+
+## Guidelines
+
+### Code Organization
+- Clear structure
+- Logical separation
+- Consistent naming
+- Proper documentation
+
+### Performance Considerations
+- Optimization strategies
+- Bottleneck identification
+- Monitoring approaches
+- Scaling techniques
+
+### Security Best Practices
+- Input validation
+- Authentication
+- Authorization
+- Data protection
+
+## Common Patterns
+
+### Pattern A
+Implementation details and examples.
+
+### Pattern B
+Implementation details and examples.
+
+### Pattern C
+Implementation details and examples.
+
+## Anti-Patterns to Avoid
+
+### Anti-Pattern 1
+What not to do and why.
+
+### Anti-Pattern 2
+What not to do and why.
+
+## Tools and Resources
+
+### Recommended Tools
+- Tool 1: Purpose
+- Tool 2: Purpose
+- Tool 3: Purpose
+
+### Further Reading
+- Resource 1
+- Resource 2
+- Resource 3
+
+## Conclusion
+
+Key takeaways for using this reference guide effectively.

.claude/skills/senior-backend/scripts/api_load_tester.py

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+#!/usr/bin/env python3
+"""
+Api Load Tester
+Automated tool for senior backend tasks
+"""
+
+import os
+import sys
+import json
+import argparse
+from pathlib import Path
+from typing import Dict, List, Optional
+
+class ApiLoadTester:
+    """Main class for api load tester functionality"""
+    
+    def __init__(self, target_path: str, verbose: bool = False):
+        self.target_path = Path(target_path)
+        self.verbose = verbose
+        self.results = {}
+    
+    def run(self) -> Dict:
+        """Execute the main functionality"""
+        print(f"🚀 Running {self.__class__.__name__}...")
+        print(f"📁 Target: {self.target_path}")
+        
+        try:
+            self.validate_target()
+            self.analyze()
+            self.generate_report()
+            
+            print("✅ Completed successfully!")
+            return self.results
+            
+        except Exception as e:
+            print(f"❌ Error: {e}")
+            sys.exit(1)
+    
+    def validate_target(self):
+        """Validate the target path exists and is accessible"""
+        if not self.target_path.exists():
+            raise ValueError(f"Target path does not exist: {self.target_path}")
+        
+        if self.verbose:
+            print(f"✓ Target validated: {self.target_path}")
+    
+    def analyze(self):
+        """Perform the main analysis or operation"""
+        if self.verbose:
+            print("📊 Analyzing...")
+        
+        # Main logic here
+        self.results['status'] = 'success'
+        self.results['target'] = str(self.target_path)
+        self.results['findings'] = []
+        
+        # Add analysis results
+        if self.verbose:
+            print(f"✓ Analysis complete: {len(self.results.get('findings', []))} findings")
+    
+    def generate_report(self):
+        """Generate and display the report"""
+        print("\n" + "="*50)
+        print("REPORT")
+        print("="*50)
+        print(f"Target: {self.results.get('target')}")
+        print(f"Status: {self.results.get('status')}")
+        print(f"Findings: {len(self.results.get('findings', []))}")
+        print("="*50 + "\n")
+
+def main():
+    """Main entry point"""
+    parser = argparse.ArgumentParser(
+        description="Api Load Tester"
+    )
+    parser.add_argument(
+        'target',
+        help='Target path to analyze or process'
+    )
+    parser.add_argument(
+        '--verbose', '-v',
+        action='store_true',
+        help='Enable verbose output'
+    )
+    parser.add_argument(
+        '--json',
+        action='store_true',
+        help='Output results as JSON'
+    )
+    parser.add_argument(
+        '--output', '-o',
+        help='Output file path'
+    )
+    
+    args = parser.parse_args()
+    
+    tool = ApiLoadTester(
+        args.target,
+        verbose=args.verbose
+    )
+    
+    results = tool.run()
+    
+    if args.json:
+        output = json.dumps(results, indent=2)
+        if args.output:
+            with open(args.output, 'w') as f:
+                f.write(output)
+            print(f"Results written to {args.output}")
+        else:
+            print(output)
+
+if __name__ == '__main__':
+    main()

.claude/skills/senior-backend/scripts/api_scaffolder.py

@@ -0,0 +1,114 @@
+#!/usr/bin/env python3
+"""
+Api Scaffolder
+Automated tool for senior backend tasks
+"""
+
+import os
+import sys
+import json
+import argparse
+from pathlib import Path
+from typing import Dict, List, Optional
+
+class ApiScaffolder:
+    """Main class for api scaffolder functionality"""
+    
+    def __init__(self, target_path: str, verbose: bool = False):
+        self.target_path = Path(target_path)
+        self.verbose = verbose
+        self.results = {}
+    
+    def run(self) -> Dict:
+        """Execute the main functionality"""
+        print(f"🚀 Running {self.__class__.__name__}...")
+        print(f"📁 Target: {self.target_path}")
+        
+        try:
+            self.validate_target()
+            self.analyze()
+            self.generate_report()
+            
+            print("✅ Completed successfully!")
+            return self.results
+            
+        except Exception as e:
+            print(f"❌ Error: {e}")
+            sys.exit(1)
+    
+    def validate_target(self):
+        """Validate the target path exists and is accessible"""
+        if not self.target_path.exists():
+            raise ValueError(f"Target path does not exist: {self.target_path}")
+        
+        if self.verbose:
+            print(f"✓ Target validated: {self.target_path}")
+    
+    def analyze(self):
+        """Perform the main analysis or operation"""
+        if self.verbose:
+            print("📊 Analyzing...")
+        
+        # Main logic here
+        self.results['status'] = 'success'
+        self.results['target'] = str(self.target_path)
+        self.results['findings'] = []
+        
+        # Add analysis results
+        if self.verbose:
+            print(f"✓ Analysis complete: {len(self.results.get('findings', []))} findings")
+    
+    def generate_report(self):
+        """Generate and display the report"""
+        print("\n" + "="*50)
+        print("REPORT")
+        print("="*50)
+        print(f"Target: {self.results.get('target')}")
+        print(f"Status: {self.results.get('status')}")
+        print(f"Findings: {len(self.results.get('findings', []))}")
+        print("="*50 + "\n")
+
+def main():
+    """Main entry point"""
+    parser = argparse.ArgumentParser(
+        description="Api Scaffolder"
+    )
+    parser.add_argument(
+        'target',
+        help='Target path to analyze or process'
+    )
+    parser.add_argument(
+        '--verbose', '-v',
+        action='store_true',
+        help='Enable verbose output'
+    )
+    parser.add_argument(
+        '--json',
+        action='store_true',
+        help='Output results as JSON'
+    )
+    parser.add_argument(
+        '--output', '-o',
+        help='Output file path'
+    )
+    
+    args = parser.parse_args()
+    
+    tool = ApiScaffolder(
+        args.target,
+        verbose=args.verbose
+    )
+    
+    results = tool.run()
+    
+    if args.json:
+        output = json.dumps(results, indent=2)
+        if args.output:
+            with open(args.output, 'w') as f:
+                f.write(output)
+            print(f"Results written to {args.output}")
+        else:
+            print(output)
+
+if __name__ == '__main__':
+    main()

.claude/skills/senior-backend/scripts/database_migration_tool.py

@@ -0,0 +1,114 @@
+#!/usr/bin/env python3
+"""
+Database Migration Tool
+Automated tool for senior backend tasks
+"""
+
+import os
+import sys
+import json
+import argparse
+from pathlib import Path
+from typing import Dict, List, Optional
+
+class DatabaseMigrationTool:
+    """Main class for database migration tool functionality"""
+    
+    def __init__(self, target_path: str, verbose: bool = False):
+        self.target_path = Path(target_path)
+        self.verbose = verbose
+        self.results = {}
+    
+    def run(self) -> Dict:
+        """Execute the main functionality"""
+        print(f"🚀 Running {self.__class__.__name__}...")
+        print(f"📁 Target: {self.target_path}")
+        
+        try:
+            self.validate_target()
+            self.analyze()
+            self.generate_report()
+            
+            print("✅ Completed successfully!")
+            return self.results
+            
+        except Exception as e:
+            print(f"❌ Error: {e}")
+            sys.exit(1)
+    
+    def validate_target(self):
+        """Validate the target path exists and is accessible"""
+        if not self.target_path.exists():
+            raise ValueError(f"Target path does not exist: {self.target_path}")
+        
+        if self.verbose:
+            print(f"✓ Target validated: {self.target_path}")
+    
+    def analyze(self):
+        """Perform the main analysis or operation"""
+        if self.verbose:
+            print("📊 Analyzing...")
+        
+        # Main logic here
+        self.results['status'] = 'success'
+        self.results['target'] = str(self.target_path)
+        self.results['findings'] = []
+        
+        # Add analysis results
+        if self.verbose:
+            print(f"✓ Analysis complete: {len(self.results.get('findings', []))} findings")
+    
+    def generate_report(self):
+        """Generate and display the report"""
+        print("\n" + "="*50)
+        print("REPORT")
+        print("="*50)
+        print(f"Target: {self.results.get('target')}")
+        print(f"Status: {self.results.get('status')}")
+        print(f"Findings: {len(self.results.get('findings', []))}")
+        print("="*50 + "\n")
+
+def main():
+    """Main entry point"""
+    parser = argparse.ArgumentParser(
+        description="Database Migration Tool"
+    )
+    parser.add_argument(
+        'target',
+        help='Target path to analyze or process'
+    )
+    parser.add_argument(
+        '--verbose', '-v',
+        action='store_true',
+        help='Enable verbose output'
+    )
+    parser.add_argument(
+        '--json',
+        action='store_true',
+        help='Output results as JSON'
+    )
+    parser.add_argument(
+        '--output', '-o',
+        help='Output file path'
+    )
+    
+    args = parser.parse_args()
+    
+    tool = DatabaseMigrationTool(
+        args.target,
+        verbose=args.verbose
+    )
+    
+    results = tool.run()
+    
+    if args.json:
+        output = json.dumps(results, indent=2)
+        if args.output:
+            with open(args.output, 'w') as f:
+                f.write(output)
+            print(f"Results written to {args.output}")
+        else:
+            print(output)
+
+if __name__ == '__main__':
+    main()