Split off config schema, update settings page

inventory-server/db/metrics-schema.sql

@@ -88,30 +88,6 @@ CREATE TABLE IF NOT EXISTS vendor_metrics (
     PRIMARY KEY (vendor)
 );
 
--- New table for stock threshold configurations
-CREATE TABLE IF NOT EXISTS stock_thresholds (
-    id INT NOT NULL,  -- Changed from AUTO_INCREMENT to explicitly set ID
-    category_id BIGINT,  -- NULL means default/global threshold
-    vendor VARCHAR(100), -- NULL means applies to all vendors
-    critical_days INT NOT NULL DEFAULT 7,
-    reorder_days INT NOT NULL DEFAULT 14,
-    overstock_days INT NOT NULL DEFAULT 90,
-    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    PRIMARY KEY (id),
-    FOREIGN KEY (category_id) REFERENCES categories(id) ON DELETE CASCADE,
-    UNIQUE KEY unique_category_vendor (category_id, vendor),
-    INDEX idx_thresholds_category_vendor (category_id, vendor)
-);
-
--- Insert default thresholds with ID=1
-INSERT INTO stock_thresholds (id, category_id, vendor, critical_days, reorder_days, overstock_days)
-VALUES (1, NULL, NULL, 7, 14, 90)
-ON DUPLICATE KEY UPDATE
-    critical_days = VALUES(critical_days),
-    reorder_days = VALUES(reorder_days),
-    overstock_days = VALUES(overstock_days);
-
 -- Re-enable foreign key checks
 SET FOREIGN_KEY_CHECKS = 1;