feat: add annotation types management system

- Created annotation_types table with name, display_name, color, category, icon
- Implemented CRUD API endpoints for annotation types management
- Built annotation types management UI page at /annotation-types
- Updated Toolbox component to dynamically load and display annotation types
- Updated CandleChart component to use dynamic annotation types for markers
- Added seed functionality for default types (break_up, break_down, line)
- Cleaned up duplicate migration files

drizzle/0001_sticky_shinko_yamashiro.sql

@@ -0,0 +1,12 @@
+CREATE TABLE `annotation_types` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`name` text NOT NULL,
+	`display_name` text NOT NULL,
+	`color` text NOT NULL,
+	`category` text NOT NULL,
+	`icon` text,
+	`is_active` integer DEFAULT 1 NOT NULL,
+	`created_at` integer NOT NULL
+);
+--> statement-breakpoint
+CREATE UNIQUE INDEX `annotation_types_name_unique` ON `annotation_types` (`name`);