diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9580d63
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,23 @@
+# Environment
+.env
+.env.local
+.env.*
+
+# Backups
+*.bak
+*.backup
+*.dump
+
+# Logs
+*.log
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+.DS_Store
+
+# Temp
+tmp/
+temp/
diff --git a/schemas/001_initial_schema.sql b/schemas/001_initial_schema.sql
new file mode 100644
index 0000000..44a365d
--- /dev/null
+++ b/schemas/001_initial_schema.sql
@@ -0,0 +1,472 @@
+-- ================================================================
+-- PMC Database Schema - Initial Setup
+-- Version: 1.0.0
+-- Date: 2025-12-08
+-- ================================================================
+
+-- Extensions
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+CREATE EXTENSION IF NOT EXISTS "pgcrypto";
+
+-- ================================================================
+-- SCHEMAS
+-- ================================================================
+
+-- Auth schema: usuarios, tenants, sesiones
+CREATE SCHEMA IF NOT EXISTS auth;
+
+-- CRM schema: clientes, marcas, productos
+CREATE SCHEMA IF NOT EXISTS crm;
+
+-- Projects schema: proyectos, campanas, briefs
+CREATE SCHEMA IF NOT EXISTS projects;
+
+-- Generation schema: jobs, workflows, modelos
+CREATE SCHEMA IF NOT EXISTS generation;
+
+-- Assets schema: biblioteca de archivos
+CREATE SCHEMA IF NOT EXISTS assets;
+
+-- ================================================================
+-- AUTH SCHEMA
+-- ================================================================
+
+-- Planes de tenant
+CREATE TABLE auth.tenant_plans (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(100) NOT NULL UNIQUE,
+    code VARCHAR(50) NOT NULL UNIQUE,
+    description TEXT,
+    price_monthly DECIMAL(10,2) DEFAULT 0,
+    price_yearly DECIMAL(10,2) DEFAULT 0,
+    max_users INT DEFAULT 5,
+    max_clients INT DEFAULT 10,
+    max_brands INT DEFAULT 20,
+    max_generations_month INT DEFAULT 100,
+    max_storage_bytes BIGINT DEFAULT 5368709120, -- 5GB
+    max_custom_models INT DEFAULT 0,
+    max_training_month INT DEFAULT 0,
+    features JSONB,
+    is_active BOOLEAN DEFAULT true,
+    sort_order INT DEFAULT 0,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+-- Tenants (organizaciones)
+CREATE TABLE auth.tenants (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL UNIQUE,
+    plan_id UUID NOT NULL REFERENCES auth.tenant_plans(id),
+    status VARCHAR(20) DEFAULT 'trial' CHECK (status IN ('trial', 'active', 'suspended', 'cancelled')),
+    logo_url VARCHAR(500),
+    settings JSONB,
+    trial_ends_at DATE,
+    billing_cycle_start DATE,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ
+);
+
+CREATE INDEX idx_tenants_slug ON auth.tenants(slug);
+CREATE INDEX idx_tenants_status ON auth.tenants(status);
+
+-- Usuarios
+CREATE TABLE auth.users (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    email VARCHAR(255) NOT NULL,
+    password_hash VARCHAR(255) NOT NULL,
+    first_name VARCHAR(100),
+    last_name VARCHAR(100),
+    avatar_url VARCHAR(500),
+    role VARCHAR(20) DEFAULT 'viewer' CHECK (role IN ('owner', 'admin', 'creative', 'analyst', 'viewer', 'client_portal')),
+    status VARCHAR(20) DEFAULT 'pending' CHECK (status IN ('pending', 'active', 'suspended')),
+    last_login_at TIMESTAMPTZ,
+    preferences JSONB,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, email)
+);
+
+CREATE INDEX idx_users_tenant ON auth.users(tenant_id);
+CREATE INDEX idx_users_email ON auth.users(email);
+CREATE INDEX idx_users_status ON auth.users(status);
+
+-- Sesiones
+CREATE TABLE auth.sessions (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id UUID NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+    refresh_token_hash VARCHAR(500) NOT NULL,
+    device_info VARCHAR(100),
+    ip_address VARCHAR(50),
+    expires_at TIMESTAMPTZ NOT NULL,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    last_used_at TIMESTAMPTZ,
+    is_active BOOLEAN DEFAULT true
+);
+
+CREATE INDEX idx_sessions_user ON auth.sessions(user_id);
+CREATE INDEX idx_sessions_expires ON auth.sessions(expires_at);
+
+-- Invitaciones
+CREATE TABLE auth.invitations (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    email VARCHAR(255) NOT NULL,
+    role VARCHAR(20) NOT NULL,
+    token VARCHAR(100) NOT NULL UNIQUE,
+    invited_by UUID REFERENCES auth.users(id),
+    expires_at TIMESTAMPTZ NOT NULL,
+    accepted_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX idx_invitations_token ON auth.invitations(token);
+CREATE INDEX idx_invitations_tenant ON auth.invitations(tenant_id);
+
+-- ================================================================
+-- CRM SCHEMA
+-- ================================================================
+
+-- Clientes
+CREATE TABLE crm.clients (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL,
+    type VARCHAR(20) DEFAULT 'company' CHECK (type IN ('company', 'individual')),
+    industry VARCHAR(100),
+    website VARCHAR(500),
+    logo_url VARCHAR(500),
+    contact_name VARCHAR(200),
+    contact_email VARCHAR(255),
+    contact_phone VARCHAR(50),
+    notes TEXT,
+    is_active BOOLEAN DEFAULT true,
+    metadata JSONB,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, slug)
+);
+
+CREATE INDEX idx_clients_tenant ON crm.clients(tenant_id);
+CREATE INDEX idx_clients_slug ON crm.clients(tenant_id, slug);
+
+-- Marcas
+CREATE TABLE crm.brands (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    client_id UUID NOT NULL REFERENCES crm.clients(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL,
+    description TEXT,
+    logo_url VARCHAR(500),
+    primary_color VARCHAR(7),
+    secondary_color VARCHAR(7),
+    brand_voice TEXT,
+    target_audience TEXT,
+    guidelines_url VARCHAR(500),
+    is_active BOOLEAN DEFAULT true,
+    metadata JSONB,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, slug)
+);
+
+CREATE INDEX idx_brands_tenant ON crm.brands(tenant_id);
+CREATE INDEX idx_brands_client ON crm.brands(client_id);
+
+-- Productos
+CREATE TABLE crm.products (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    brand_id UUID NOT NULL REFERENCES crm.brands(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL,
+    description TEXT,
+    sku VARCHAR(100),
+    category VARCHAR(100),
+    price DECIMAL(10,2),
+    currency VARCHAR(3) DEFAULT 'USD',
+    image_urls JSONB, -- Array of image URLs
+    attributes JSONB, -- Custom attributes
+    is_active BOOLEAN DEFAULT true,
+    metadata JSONB,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, slug)
+);
+
+CREATE INDEX idx_products_tenant ON crm.products(tenant_id);
+CREATE INDEX idx_products_brand ON crm.products(brand_id);
+
+-- ================================================================
+-- PROJECTS SCHEMA
+-- ================================================================
+
+-- Proyectos
+CREATE TABLE projects.projects (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    client_id UUID REFERENCES crm.clients(id) ON DELETE SET NULL,
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL,
+    description TEXT,
+    status VARCHAR(20) DEFAULT 'draft' CHECK (status IN ('draft', 'active', 'paused', 'completed', 'archived')),
+    start_date DATE,
+    end_date DATE,
+    budget DECIMAL(12,2),
+    currency VARCHAR(3) DEFAULT 'USD',
+    metadata JSONB,
+    created_by UUID REFERENCES auth.users(id),
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, slug)
+);
+
+CREATE INDEX idx_projects_tenant ON projects.projects(tenant_id);
+CREATE INDEX idx_projects_client ON projects.projects(client_id);
+CREATE INDEX idx_projects_status ON projects.projects(status);
+
+-- Campanas
+CREATE TABLE projects.campaigns (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    project_id UUID NOT NULL REFERENCES projects.projects(id) ON DELETE CASCADE,
+    brand_id UUID REFERENCES crm.brands(id) ON DELETE SET NULL,
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL,
+    description TEXT,
+    objective TEXT,
+    target_audience TEXT,
+    channels JSONB, -- Array of channels: instagram, facebook, etc
+    status VARCHAR(20) DEFAULT 'draft' CHECK (status IN ('draft', 'planning', 'in_progress', 'review', 'approved', 'published')),
+    start_date DATE,
+    end_date DATE,
+    brief JSONB, -- Campaign brief details
+    metadata JSONB,
+    created_by UUID REFERENCES auth.users(id),
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, slug)
+);
+
+CREATE INDEX idx_campaigns_tenant ON projects.campaigns(tenant_id);
+CREATE INDEX idx_campaigns_project ON projects.campaigns(project_id);
+CREATE INDEX idx_campaigns_brand ON projects.campaigns(brand_id);
+
+-- ================================================================
+-- GENERATION SCHEMA
+-- ================================================================
+
+-- Workflows de generacion
+CREATE TABLE generation.workflows (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL,
+    code VARCHAR(100) NOT NULL UNIQUE,
+    description TEXT,
+    type VARCHAR(50) NOT NULL, -- image, text, composite
+    input_schema JSONB NOT NULL, -- JSON Schema for inputs
+    output_schema JSONB, -- Expected outputs
+    comfyui_template JSONB, -- ComfyUI workflow JSON
+    estimated_time_seconds INT DEFAULT 60,
+    is_active BOOLEAN DEFAULT true,
+    is_system BOOLEAN DEFAULT true, -- System vs custom workflow
+    tenant_id UUID REFERENCES auth.tenants(id) ON DELETE CASCADE, -- NULL for system workflows
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX idx_workflows_code ON generation.workflows(code);
+CREATE INDEX idx_workflows_tenant ON generation.workflows(tenant_id);
+
+-- Jobs de generacion
+CREATE TABLE generation.jobs (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    user_id UUID NOT NULL REFERENCES auth.users(id),
+    workflow_id UUID NOT NULL REFERENCES generation.workflows(id),
+    campaign_id UUID REFERENCES projects.campaigns(id) ON DELETE SET NULL,
+    brand_id UUID REFERENCES crm.brands(id) ON DELETE SET NULL,
+    status VARCHAR(20) DEFAULT 'queued' CHECK (status IN ('queued', 'processing', 'completed', 'failed', 'cancelled')),
+    priority INT DEFAULT 0,
+    input_params JSONB NOT NULL,
+    output_data JSONB, -- Results after completion
+    error_message TEXT,
+    progress INT DEFAULT 0, -- 0-100
+    started_at TIMESTAMPTZ,
+    completed_at TIMESTAMPTZ,
+    processing_time_ms INT,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+CREATE INDEX idx_jobs_tenant ON generation.jobs(tenant_id);
+CREATE INDEX idx_jobs_user ON generation.jobs(user_id);
+CREATE INDEX idx_jobs_status ON generation.jobs(status);
+CREATE INDEX idx_jobs_created ON generation.jobs(created_at DESC);
+
+-- Modelos personalizados (LoRAs)
+CREATE TABLE generation.custom_models (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    brand_id UUID REFERENCES crm.brands(id) ON DELETE SET NULL,
+    name VARCHAR(255) NOT NULL,
+    type VARCHAR(50) NOT NULL, -- lora, checkpoint, embedding
+    file_path VARCHAR(500) NOT NULL,
+    file_size_bytes BIGINT,
+    trigger_word VARCHAR(100),
+    training_images_count INT,
+    preview_images JSONB, -- Array of preview image URLs
+    status VARCHAR(20) DEFAULT 'pending' CHECK (status IN ('pending', 'training', 'ready', 'failed')),
+    training_config JSONB,
+    metadata JSONB,
+    created_by UUID REFERENCES auth.users(id),
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ
+);
+
+CREATE INDEX idx_custom_models_tenant ON generation.custom_models(tenant_id);
+CREATE INDEX idx_custom_models_brand ON generation.custom_models(brand_id);
+
+-- ================================================================
+-- ASSETS SCHEMA
+-- ================================================================
+
+-- Colecciones
+CREATE TABLE assets.collections (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(100) NOT NULL,
+    description TEXT,
+    is_public BOOLEAN DEFAULT false,
+    parent_id UUID REFERENCES assets.collections(id) ON DELETE SET NULL,
+    created_by UUID REFERENCES auth.users(id),
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    UNIQUE(tenant_id, slug)
+);
+
+CREATE INDEX idx_collections_tenant ON assets.collections(tenant_id);
+CREATE INDEX idx_collections_parent ON assets.collections(parent_id);
+
+-- Assets (archivos)
+CREATE TABLE assets.assets (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES auth.tenants(id) ON DELETE CASCADE,
+    collection_id UUID REFERENCES assets.collections(id) ON DELETE SET NULL,
+    job_id UUID REFERENCES generation.jobs(id) ON DELETE SET NULL, -- Si fue generado
+    name VARCHAR(255) NOT NULL,
+    original_filename VARCHAR(255),
+    mime_type VARCHAR(100) NOT NULL,
+    file_path VARCHAR(500) NOT NULL,
+    file_size_bytes BIGINT NOT NULL,
+    width INT,
+    height INT,
+    duration_seconds DECIMAL(10,2), -- For video/audio
+    thumbnail_url VARCHAR(500),
+    metadata JSONB, -- EXIF, AI generation params, etc
+    tags JSONB, -- Array of tags
+    is_public BOOLEAN DEFAULT false,
+    version INT DEFAULT 1,
+    parent_id UUID REFERENCES assets.assets(id) ON DELETE SET NULL, -- For versions
+    created_by UUID REFERENCES auth.users(id),
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ
+);
+
+CREATE INDEX idx_assets_tenant ON assets.assets(tenant_id);
+CREATE INDEX idx_assets_collection ON assets.assets(collection_id);
+CREATE INDEX idx_assets_job ON assets.assets(job_id);
+CREATE INDEX idx_assets_mime ON assets.assets(mime_type);
+
+-- ================================================================
+-- ROW LEVEL SECURITY (RLS)
+-- ================================================================
+
+-- Enable RLS on all tenant-scoped tables
+ALTER TABLE auth.tenants ENABLE ROW LEVEL SECURITY;
+ALTER TABLE auth.users ENABLE ROW LEVEL SECURITY;
+ALTER TABLE auth.sessions ENABLE ROW LEVEL SECURITY;
+ALTER TABLE auth.invitations ENABLE ROW LEVEL SECURITY;
+ALTER TABLE crm.clients ENABLE ROW LEVEL SECURITY;
+ALTER TABLE crm.brands ENABLE ROW LEVEL SECURITY;
+ALTER TABLE crm.products ENABLE ROW LEVEL SECURITY;
+ALTER TABLE projects.projects ENABLE ROW LEVEL SECURITY;
+ALTER TABLE projects.campaigns ENABLE ROW LEVEL SECURITY;
+ALTER TABLE generation.jobs ENABLE ROW LEVEL SECURITY;
+ALTER TABLE generation.custom_models ENABLE ROW LEVEL SECURITY;
+ALTER TABLE assets.collections ENABLE ROW LEVEL SECURITY;
+ALTER TABLE assets.assets ENABLE ROW LEVEL SECURITY;
+
+-- Function to get current tenant from session variable
+CREATE OR REPLACE FUNCTION auth.current_tenant_id()
+RETURNS UUID AS $$
+BEGIN
+    RETURN NULLIF(current_setting('app.current_tenant', true), '')::UUID;
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER;
+
+-- RLS Policies (example for clients, apply similar to all tables)
+CREATE POLICY tenant_isolation_policy ON crm.clients
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON crm.brands
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON crm.products
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON projects.projects
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON projects.campaigns
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON generation.jobs
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON generation.custom_models
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON assets.collections
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+CREATE POLICY tenant_isolation_policy ON assets.assets
+    FOR ALL
+    USING (tenant_id = auth.current_tenant_id());
+
+-- ================================================================
+-- COMMENTS
+-- ================================================================
+
+COMMENT ON SCHEMA auth IS 'Authentication and authorization: users, tenants, sessions';
+COMMENT ON SCHEMA crm IS 'Customer relationship management: clients, brands, products';
+COMMENT ON SCHEMA projects IS 'Project management: projects, campaigns';
+COMMENT ON SCHEMA generation IS 'AI generation: workflows, jobs, models';
+COMMENT ON SCHEMA assets IS 'Digital asset management: files, collections';
+
+COMMENT ON TABLE auth.tenants IS 'Organizations/companies using the platform';
+COMMENT ON TABLE auth.users IS 'Platform users, scoped to tenants';
+COMMENT ON TABLE generation.workflows IS 'AI generation workflow definitions';
+COMMENT ON TABLE generation.jobs IS 'AI generation job queue and history';
diff --git a/seeds/001_initial_data.sql b/seeds/001_initial_data.sql
new file mode 100644
index 0000000..bde38d9
--- /dev/null
+++ b/seeds/001_initial_data.sql
@@ -0,0 +1,274 @@
+-- ================================================================
+-- PMC Database Seeds - Initial Data
+-- Version: 1.0.0
+-- Date: 2025-12-08
+-- ================================================================
+
+-- ================================================================
+-- TENANT PLANS
+-- ================================================================
+
+INSERT INTO auth.tenant_plans (id, name, code, description, price_monthly, price_yearly, max_users, max_clients, max_brands, max_generations_month, max_storage_bytes, max_custom_models, max_training_month, features, sort_order) VALUES
+-- Starter (Free/Trial)
+(
+    'a0000000-0000-0000-0000-000000000001',
+    'Starter',
+    'starter',
+    'Plan gratuito para empezar',
+    0,
+    0,
+    3,          -- max_users
+    5,          -- max_clients
+    10,         -- max_brands
+    100,        -- max_generations_month
+    1073741824, -- max_storage_bytes (1GB)
+    0,          -- max_custom_models
+    0,          -- max_training_month
+    '{"analytics": false, "automation": false, "api_access": false, "priority_support": false}'::JSONB,
+    1
+),
+-- Pro
+(
+    'a0000000-0000-0000-0000-000000000002',
+    'Pro',
+    'pro',
+    'Para equipos en crecimiento',
+    49.00,
+    470.00,
+    10,          -- max_users
+    25,          -- max_clients
+    50,          -- max_brands
+    1000,        -- max_generations_month
+    10737418240, -- max_storage_bytes (10GB)
+    10,          -- max_custom_models
+    5,           -- max_training_month
+    '{"analytics": true, "automation": true, "api_access": false, "priority_support": false}'::JSONB,
+    2
+),
+-- Business
+(
+    'a0000000-0000-0000-0000-000000000003',
+    'Business',
+    'business',
+    'Para agencias y empresas',
+    149.00,
+    1430.00,
+    50,           -- max_users
+    100,          -- max_clients
+    200,          -- max_brands
+    10000,        -- max_generations_month
+    107374182400, -- max_storage_bytes (100GB)
+    50,           -- max_custom_models
+    20,           -- max_training_month
+    '{"analytics": true, "automation": true, "api_access": true, "priority_support": true}'::JSONB,
+    3
+),
+-- Enterprise
+(
+    'a0000000-0000-0000-0000-000000000004',
+    'Enterprise',
+    'enterprise',
+    'Plan personalizado para grandes organizaciones',
+    0, -- Custom pricing
+    0,
+    -1,  -- unlimited (represented as -1)
+    -1,
+    -1,
+    -1,
+    -1,
+    -1,
+    -1,
+    '{"analytics": true, "automation": true, "api_access": true, "priority_support": true, "sla": true, "custom_integrations": true}'::JSONB,
+    4
+);
+
+-- ================================================================
+-- SYSTEM WORKFLOWS
+-- ================================================================
+
+INSERT INTO generation.workflows (id, name, code, description, type, input_schema, output_schema, estimated_time_seconds, is_active, is_system, tenant_id) VALUES
+-- Product Photo Synthetic
+(
+    'w0000000-0000-0000-0000-000000000001',
+    'Product Photo Synthetic',
+    'product_photo_synthetic',
+    'Genera fotos de producto en contexto comercial',
+    'image',
+    '{
+        "type": "object",
+        "required": ["product_description"],
+        "properties": {
+            "product_description": {"type": "string", "description": "Descripcion del producto"},
+            "reference_image": {"type": "string", "format": "uri", "description": "URL imagen referencia"},
+            "background": {"type": "string", "enum": ["white", "lifestyle", "custom"], "default": "white"},
+            "style": {"type": "string", "enum": ["minimalist", "premium", "casual"], "default": "minimalist"},
+            "lora_id": {"type": "string", "format": "uuid", "description": "ID del LoRA de marca"},
+            "seed": {"type": "integer", "description": "Seed para reproducibilidad"}
+        }
+    }'::JSONB,
+    '{
+        "type": "object",
+        "properties": {
+            "images": {"type": "array", "items": {"type": "string", "format": "uri"}},
+            "count": {"type": "integer"}
+        }
+    }'::JSONB,
+    60,
+    true,
+    true,
+    NULL
+),
+-- Social Media Post
+(
+    'w0000000-0000-0000-0000-000000000002',
+    'Social Media Post',
+    'social_media_post',
+    'Genera imagen + copy para redes sociales',
+    'composite',
+    '{
+        "type": "object",
+        "required": ["brief", "brand_id"],
+        "properties": {
+            "brief": {
+                "type": "object",
+                "properties": {
+                    "objetivo": {"type": "string"},
+                    "audiencia": {"type": "string"},
+                    "tono": {"type": "string"}
+                }
+            },
+            "product_id": {"type": "string", "format": "uuid"},
+            "channel": {"type": "string", "enum": ["instagram", "facebook", "linkedin", "tiktok"]},
+            "format": {"type": "string", "enum": ["post", "story", "carousel"]},
+            "brand_id": {"type": "string", "format": "uuid"}
+        }
+    }'::JSONB,
+    '{
+        "type": "object",
+        "properties": {
+            "images": {"type": "array"},
+            "copy": {"type": "string"},
+            "hashtags": {"type": "array", "items": {"type": "string"}}
+        }
+    }'::JSONB,
+    90,
+    true,
+    true,
+    NULL
+),
+-- Ad Variations
+(
+    'w0000000-0000-0000-0000-000000000003',
+    'Ad Variations',
+    'ad_variations',
+    'Genera variaciones para A/B testing',
+    'image',
+    '{
+        "type": "object",
+        "required": ["base_image"],
+        "properties": {
+            "base_image": {"type": "string", "description": "Asset ID o URL de imagen base"},
+            "variations_count": {"type": "integer", "minimum": 2, "maximum": 10, "default": 5},
+            "variation_type": {"type": "string", "enum": ["color", "background", "composition"]}
+        }
+    }'::JSONB,
+    '{
+        "type": "object",
+        "properties": {
+            "variations": {"type": "array"},
+            "metadata": {"type": "object"}
+        }
+    }'::JSONB,
+    120,
+    true,
+    true,
+    NULL
+),
+-- Virtual Avatar
+(
+    'w0000000-0000-0000-0000-000000000004',
+    'Virtual Avatar',
+    'virtual_avatar',
+    'Genera avatar/influencer virtual consistente',
+    'image',
+    '{
+        "type": "object",
+        "required": ["character_lora_id"],
+        "properties": {
+            "character_lora_id": {"type": "string", "format": "uuid"},
+            "pose": {"type": "string", "enum": ["standing", "sitting", "walking", "custom"]},
+            "outfit": {"type": "string"},
+            "background": {"type": "string"},
+            "expression": {"type": "string", "enum": ["happy", "serious", "surprised", "neutral"]}
+        }
+    }'::JSONB,
+    '{
+        "type": "object",
+        "properties": {
+            "images": {"type": "array"},
+            "character_consistency_score": {"type": "number"}
+        }
+    }'::JSONB,
+    90,
+    true,
+    true,
+    NULL
+);
+
+-- ================================================================
+-- DEMO TENANT (for development)
+-- ================================================================
+
+-- Only insert demo data in development
+DO $$
+BEGIN
+    -- Demo Tenant
+    INSERT INTO auth.tenants (id, name, slug, plan_id, status, trial_ends_at) VALUES
+    (
+        'd0000000-0000-0000-0000-000000000001',
+        'Demo Agency',
+        'demo-agency',
+        'a0000000-0000-0000-0000-000000000002', -- Pro plan
+        'active',
+        (CURRENT_DATE + INTERVAL '30 days')::DATE
+    );
+
+    -- Demo User (password: demo123456)
+    INSERT INTO auth.users (id, tenant_id, email, password_hash, first_name, last_name, role, status) VALUES
+    (
+        'u0000000-0000-0000-0000-000000000001',
+        'd0000000-0000-0000-0000-000000000001',
+        'demo@pmc.dev',
+        '$2b$12$LQv3c1yqBWVHxkd0LHAkCOYz6TtxMQJqhN8/X4.E5F5u5V5V5V5V5V', -- bcrypt hash of 'demo123456'
+        'Demo',
+        'User',
+        'owner',
+        'active'
+    );
+
+    -- Demo Client
+    INSERT INTO crm.clients (id, tenant_id, name, slug, type, industry) VALUES
+    (
+        'c0000000-0000-0000-0000-000000000001',
+        'd0000000-0000-0000-0000-000000000001',
+        'Acme Corporation',
+        'acme-corp',
+        'company',
+        'Technology'
+    );
+
+    -- Demo Brand
+    INSERT INTO crm.brands (id, tenant_id, client_id, name, slug, primary_color, secondary_color) VALUES
+    (
+        'b0000000-0000-0000-0000-000000000001',
+        'd0000000-0000-0000-0000-000000000001',
+        'c0000000-0000-0000-0000-000000000001',
+        'Acme Brand',
+        'acme-brand',
+        '#3B82F6',
+        '#10B981'
+    );
+
+EXCEPTION WHEN OTHERS THEN
+    RAISE NOTICE 'Demo data already exists or error: %', SQLERRM;
+END $$;