Implement comprehensive repository management system for WHOOSH

- Add database migrations for repositories, webhooks, and sync logs tables
- Implement full CRUD API for repository management
- Add web UI with repository list, add form, and management interface
- Support JSONB handling for topics and metadata
- Handle nullable database columns properly
- Integrate with existing WHOOSH dashboard and navigation
- Enable Gitea repository monitoring for issue tracking and CHORUS integration

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

migrations/003_add_repositories_table.up.sql

@@ -0,0 +1,127 @@
+-- Repository monitoring table for WHOOSH
+-- Tracks Gitea repositories for issue monitoring and CHORUS integration
+
+CREATE TABLE repositories (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    
+    -- Repository identification
+    name VARCHAR(255) NOT NULL, -- e.g., "WHOOSH", "CHORUS"
+    owner VARCHAR(255) NOT NULL, -- e.g., "tony", "chorus-services"
+    full_name VARCHAR(255) NOT NULL, -- e.g., "tony/WHOOSH"
+    
+    -- Repository URLs and access
+    url TEXT NOT NULL, -- Full Gitea URL, e.g., "https://gitea.chorus.services/tony/WHOOSH"
+    clone_url TEXT, -- Git clone URL
+    ssh_url TEXT, -- SSH clone URL
+    
+    -- Repository configuration
+    source_type VARCHAR(50) NOT NULL DEFAULT 'gitea', -- 'gitea', 'github', 'gitlab'
+    source_config JSONB DEFAULT '{}', -- Source-specific configuration (API tokens, etc.)
+    
+    -- Monitoring settings
+    monitor_issues BOOLEAN NOT NULL DEFAULT true,
+    monitor_pull_requests BOOLEAN NOT NULL DEFAULT false,
+    monitor_releases BOOLEAN NOT NULL DEFAULT false,
+    
+    -- CHORUS/BZZZ integration settings
+    enable_chorus_integration BOOLEAN NOT NULL DEFAULT true,
+    chorus_task_labels JSONB DEFAULT '["bzzz-task", "chorus-task"]', -- Labels that trigger CHORUS tasks
+    auto_assign_teams BOOLEAN NOT NULL DEFAULT true,
+    
+    -- Repository metadata
+    description TEXT,
+    default_branch VARCHAR(100) DEFAULT 'main',
+    is_private BOOLEAN DEFAULT false,
+    language VARCHAR(100),
+    topics JSONB DEFAULT '[]',
+    
+    -- Monitoring state
+    last_sync_at TIMESTAMP WITH TIME ZONE,
+    last_issue_sync TIMESTAMP WITH TIME ZONE,
+    sync_status VARCHAR(50) NOT NULL DEFAULT 'pending', -- 'pending', 'active', 'error', 'disabled'
+    sync_error TEXT,
+    
+    -- Statistics
+    open_issues_count INTEGER DEFAULT 0,
+    closed_issues_count INTEGER DEFAULT 0,
+    total_tasks_created INTEGER DEFAULT 0,
+    
+    -- Timestamps
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    
+    -- Constraints
+    UNIQUE(full_name, source_type) -- Prevent duplicate repositories
+);
+
+-- Repository webhooks for real-time updates
+CREATE TABLE repository_webhooks (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    repository_id UUID NOT NULL REFERENCES repositories(id) ON DELETE CASCADE,
+    
+    -- Webhook configuration
+    webhook_url TEXT NOT NULL, -- The webhook endpoint URL
+    webhook_secret VARCHAR(255), -- Secret for webhook validation
+    events JSONB NOT NULL DEFAULT '["issues", "pull_request"]', -- Events to listen for
+    
+    -- Webhook state
+    is_active BOOLEAN NOT NULL DEFAULT true,
+    last_delivery_at TIMESTAMP WITH TIME ZONE,
+    delivery_count INTEGER DEFAULT 0,
+    failure_count INTEGER DEFAULT 0,
+    
+    -- Timestamps
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Repository sync logs for debugging and monitoring
+CREATE TABLE repository_sync_logs (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    repository_id UUID NOT NULL REFERENCES repositories(id) ON DELETE CASCADE,
+    
+    -- Sync operation details
+    sync_type VARCHAR(50) NOT NULL, -- 'full_sync', 'incremental_sync', 'webhook'
+    operation VARCHAR(100) NOT NULL, -- 'fetch_issues', 'create_task', 'update_task'
+    
+    -- Sync results
+    status VARCHAR(50) NOT NULL, -- 'success', 'error', 'warning'
+    message TEXT,
+    error_details JSONB,
+    
+    -- Metrics
+    items_processed INTEGER DEFAULT 0,
+    items_created INTEGER DEFAULT 0,
+    items_updated INTEGER DEFAULT 0,
+    duration_ms INTEGER,
+    
+    -- Context
+    external_id VARCHAR(255), -- Issue ID, PR ID, etc.
+    external_url TEXT,
+    
+    -- Timestamps
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Indexes for performance
+CREATE INDEX idx_repositories_source_type ON repositories(source_type);
+CREATE INDEX idx_repositories_full_name ON repositories(full_name);
+CREATE INDEX idx_repositories_sync_status ON repositories(sync_status);
+CREATE INDEX idx_repositories_monitor_issues ON repositories(monitor_issues);
+CREATE INDEX idx_repositories_enable_chorus ON repositories(enable_chorus_integration);
+CREATE INDEX idx_repositories_last_sync ON repositories(last_sync_at);
+
+CREATE INDEX idx_repository_webhooks_repository_id ON repository_webhooks(repository_id);
+CREATE INDEX idx_repository_webhooks_active ON repository_webhooks(is_active);
+
+CREATE INDEX idx_repository_sync_logs_repository_id ON repository_sync_logs(repository_id);
+CREATE INDEX idx_repository_sync_logs_created_at ON repository_sync_logs(created_at);
+CREATE INDEX idx_repository_sync_logs_status ON repository_sync_logs(status);
+CREATE INDEX idx_repository_sync_logs_sync_type ON repository_sync_logs(sync_type);
+
+-- Add repository relationship to tasks table
+ALTER TABLE tasks ADD COLUMN IF NOT EXISTS repository_id UUID REFERENCES repositories(id) ON DELETE SET NULL;
+CREATE INDEX IF NOT EXISTS idx_tasks_repository_id ON tasks(repository_id);
+
+-- Update tasks table to improve repository tracking
+ALTER TABLE tasks ALTER COLUMN repository TYPE TEXT; -- Allow longer repository names