feat: add voice recordings feature with database integration

- Implemented PostgreSQL and SQLite schemas for voice recordings.
- Created repository functions for inserting, updating, and listing voice recordings.
- Developed uploader logic to handle file uploads and database updates.
- Added routes for accessing voice recordings via API.
- Enhanced UI state to include recordings tab.
- Introduced moderation WebSocket event for uploaded recordings.

drizzle/migrations/0002_dark_omega_flight.sql

@@ -0,0 +1,20 @@
+CREATE TABLE "voice_recordings" (
+	"id" text PRIMARY KEY NOT NULL,
+	"user_id" text NOT NULL,
+	"username" text NOT NULL,
+	"avatar_url" text,
+	"guild_id" text,
+	"channel_id" text,
+	"channel_name" text,
+	"filename" text NOT NULL,
+	"size_bytes" integer NOT NULL,
+	"download_url" text,
+	"upload_status" text DEFAULT 'pending' NOT NULL,
+	"upload_error" text,
+	"created_at" bigint NOT NULL,
+	"uploaded_at" bigint
+);
+--> statement-breakpoint
+CREATE INDEX "idx_voice_recordings_user_id" ON "voice_recordings" USING btree ("user_id");--> statement-breakpoint
+CREATE INDEX "idx_voice_recordings_channel_id" ON "voice_recordings" USING btree ("channel_id");--> statement-breakpoint
+CREATE INDEX "idx_voice_recordings_created_at" ON "voice_recordings" USING btree ("created_at");