Add initial database schema and journal entries for token management

- Created a new snapshot JSON file (0003_snapshot.json) defining the schema for tables including account_tokens, accounts, checkin_logs, events, model_availability, proxy_logs, route_channels, settings, sites, token_model_availability, and token_routes.
- Added columns, indexes, and foreign key constraints for each table to ensure data integrity and relationships.
- Introduced a journal JSON file (_journal.json) to track schema versions and changes, including entries for version 6 with relevant tags and timestamps.

drizzle/0001_token_management.sql

@@ -0,0 +1,35 @@
+CREATE TABLE IF NOT EXISTS `account_tokens` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`account_id` integer NOT NULL,
+	`name` text NOT NULL,
+	`token` text NOT NULL,
+	`source` text DEFAULT 'manual',
+	`enabled` integer DEFAULT true,
+	`is_default` integer DEFAULT false,
+	`created_at` text DEFAULT (datetime('now')),
+	`updated_at` text DEFAULT (datetime('now')),
+	FOREIGN KEY (`account_id`) REFERENCES `accounts`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+ALTER TABLE `route_channels` ADD COLUMN `token_id` integer;
+--> statement-breakpoint
+INSERT INTO `account_tokens` (`account_id`, `name`, `token`, `source`, `enabled`, `is_default`, `created_at`, `updated_at`)
+SELECT
+	`a`.`id`,
+	'default',
+	`a`.`api_token`,
+	'legacy',
+	true,
+	true,
+	datetime('now'),
+	datetime('now')
+FROM `accounts` AS `a`
+WHERE
+	`a`.`api_token` IS NOT NULL
+	AND trim(`a`.`api_token`) <> ''
+	AND NOT EXISTS (
+		SELECT 1 FROM `account_tokens` AS `t`
+		WHERE `t`.`account_id` = `a`.`id`
+		AND `t`.`token` = `a`.`api_token`
+	);
+