Add in image library feature

inventory-server/db/setup-schema.sql

@@ -49,6 +49,30 @@ CREATE UNIQUE INDEX IF NOT EXISTS idx_unique_system_prompt
 ON ai_prompts (prompt_type) 
 WHERE prompt_type = 'system';
 
+-- Reusable Images table for storing persistent images
+CREATE TABLE IF NOT EXISTS reusable_images (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL,
+    filename TEXT NOT NULL,
+    file_path TEXT NOT NULL,
+    image_url TEXT NOT NULL,
+    is_global BOOLEAN NOT NULL DEFAULT false,
+    company TEXT,
+    mime_type TEXT,
+    file_size INTEGER,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT company_required_for_non_global CHECK (
+        (is_global = true AND company IS NULL) OR
+        (is_global = false AND company IS NOT NULL)
+    )
+);
+
+-- Create index on company for efficient querying
+CREATE INDEX IF NOT EXISTS idx_reusable_images_company ON reusable_images(company);
+-- Create index on is_global for efficient querying
+CREATE INDEX IF NOT EXISTS idx_reusable_images_is_global ON reusable_images(is_global);
+
 -- AI Validation Performance Tracking
 CREATE TABLE IF NOT EXISTS ai_validation_performance (
     id SERIAL PRIMARY KEY,
@@ -82,4 +106,10 @@ CREATE TRIGGER update_templates_updated_at
 CREATE TRIGGER update_ai_prompts_updated_at
     BEFORE UPDATE ON ai_prompts
     FOR EACH ROW
+    EXECUTE FUNCTION update_updated_at_column();
+    
+-- Trigger to automatically update the updated_at column for reusable_images
+CREATE TRIGGER update_reusable_images_updated_at
+    BEFORE UPDATE ON reusable_images
+    FOR EACH ROW
     EXECUTE FUNCTION update_updated_at_column();