ALwrity onboarding final step

backend/database/migrations/add_persona_data_table.sql

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+-- Migration: Add persona_data table for onboarding step 4
+-- Created: 2025-10-10
+-- Description: Adds table to store persona generation data from onboarding step 4
+
+CREATE TABLE IF NOT EXISTS persona_data (
+    id SERIAL PRIMARY KEY,
+    session_id INTEGER NOT NULL,
+    core_persona JSONB,
+    platform_personas JSONB,
+    quality_metrics JSONB,
+    selected_platforms JSONB,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (session_id) REFERENCES onboarding_sessions(id) ON DELETE CASCADE
+);
+
+-- Add index for better query performance
+CREATE INDEX IF NOT EXISTS idx_persona_data_session_id ON persona_data(session_id);
+CREATE INDEX IF NOT EXISTS idx_persona_data_created_at ON persona_data(created_at);
+
+-- Add comment to table
+COMMENT ON TABLE persona_data IS 'Stores persona generation data from onboarding step 4';
+COMMENT ON COLUMN persona_data.core_persona IS 'Core persona data (demographics, psychographics, etc.)';
+COMMENT ON COLUMN persona_data.platform_personas IS 'Platform-specific personas (LinkedIn, Twitter, etc.)';
+COMMENT ON COLUMN persona_data.quality_metrics IS 'Quality assessment metrics';
+COMMENT ON COLUMN persona_data.selected_platforms IS 'Array of selected platforms';