feat: Tree-of-Thoughts Visual Orchestration Platform - Foundation

database/schema.sql

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+-- CodeGen Tree-of-Thoughts Platform Database Schema
+-- PostgreSQL 14+
+
+-- Enable UUID extension
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+-- Workflows table: Stores node-based workflow definitions
+CREATE TABLE workflows (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    organization_id INTEGER NOT NULL,
+    name VARCHAR(255) NOT NULL,
+    description TEXT,
+    definition JSONB NOT NULL, -- {nodes: [...], edges: [...]}
+    context JSONB DEFAULT '{}', -- System context snapshot
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    created_by INTEGER,
+    is_template BOOLEAN DEFAULT FALSE
+);
+
+-- Executions table: Runtime tracking of workflow runs
+CREATE TABLE executions (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    workflow_id UUID NOT NULL REFERENCES workflows(id) ON DELETE CASCADE,
+    status VARCHAR(50) NOT NULL, -- IDLE, GENERATING, EVALUATING, PRUNING, EXECUTING, COMPLETED, FAILED
+    context JSONB DEFAULT '{}', -- Execution state
+    results JSONB, -- Final results
+    logs TEXT[], -- Execution logs
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    completed_at TIMESTAMP,
+    error_message TEXT
+);
+
+-- Templates table: Reusable workflow templates
+CREATE TABLE templates (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(255) NOT NULL,
+    category VARCHAR(100), -- e.g., 'development', 'research', 'analysis'
+    description TEXT,
+    definition JSONB NOT NULL,
+    downloads INTEGER DEFAULT 0,
+    rating DECIMAL(3,2) DEFAULT 0.00,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Profiles table: Agent and workflow configuration profiles
+CREATE TABLE profiles (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(255) NOT NULL,
+    type VARCHAR(50) NOT NULL, -- 'agent', 'workflow', 'node'
+    config JSONB NOT NULL, -- Configuration settings
+    rules TEXT, -- Business rules
+    instructions TEXT, -- Agent instructions
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Workflow States table: Snapshots of workflow execution state
+CREATE TABLE workflow_states (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    workflow_id UUID NOT NULL REFERENCES workflows(id) ON DELETE CASCADE,
+    execution_id UUID NOT NULL REFERENCES executions(id) ON DELETE CASCADE,
+    node_id VARCHAR(255), -- Current node being executed
+    state JSONB NOT NULL, -- Full state snapshot
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Webhooks table: Event notification configuration
+CREATE TABLE webhooks (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    workflow_id UUID REFERENCES workflows(id) ON DELETE CASCADE,
+    url VARCHAR(2048) NOT NULL,
+    events TEXT[] NOT NULL, -- ['workflow:updated', 'execution:completed', etc.]
+    headers JSONB DEFAULT '{}', -- Custom HTTP headers
+    is_active BOOLEAN DEFAULT TRUE,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- API Keys table: Authentication and authorization
+CREATE TABLE api_keys (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    user_id INTEGER NOT NULL,
+    organization_id INTEGER NOT NULL,
+    name VARCHAR(255) NOT NULL,
+    key_hash VARCHAR(255) NOT NULL UNIQUE, -- Hashed API key
+    scopes TEXT[] NOT NULL, -- ['workflows:read', 'workflows:write', 'executions:read', etc.]
+    last_used_at TIMESTAMP,
+    expires_at TIMESTAMP,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    is_active BOOLEAN DEFAULT TRUE
+);
+
+-- Performance Indexes
+CREATE INDEX idx_workflows_org_created ON workflows(organization_id, created_at DESC);
+CREATE INDEX idx_workflows_template ON workflows(is_template) WHERE is_template = TRUE;
+CREATE INDEX idx_executions_workflow_status ON executions(workflow_id, status);
+CREATE INDEX idx_executions_created ON executions(created_at DESC);
+CREATE INDEX idx_workflow_states_execution ON workflow_states(workflow_id, execution_id);
+CREATE INDEX idx_templates_category ON templates(category);
+CREATE INDEX idx_api_keys_hash ON api_keys(key_hash);
+CREATE INDEX idx_webhooks_workflow ON webhooks(workflow_id) WHERE is_active = TRUE;
+
+-- Update timestamp trigger function
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = CURRENT_TIMESTAMP;
+    RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+-- Apply update triggers
+CREATE TRIGGER update_workflows_updated_at BEFORE UPDATE ON workflows
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
+
+CREATE TRIGGER update_templates_updated_at BEFORE UPDATE ON templates
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
+
+CREATE TRIGGER update_profiles_updated_at BEFORE UPDATE ON profiles
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
+

frontend/.gitignore

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+# Dependencies
+node_modules/
+/.pnp
+.pnp.js
+
+# Testing
+/coverage
+
+# Production
+/build
+/dist
+
+# Misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Build
+*.tsbuildinfo
+