Add events module with dashboard UI, scheduling, signups, and settings updates; extend env/readme.

src/database/migrations/20251201114634_add_guild_settings/migration.sql

@@ -0,0 +1,12 @@
+-- CreateTable
+CREATE TABLE "GuildSettings" (
+    "guildId" TEXT NOT NULL,
+    "welcomeChannelId" TEXT,
+    "logChannelId" TEXT,
+    "automodEnabled" BOOLEAN,
+    "levelingEnabled" BOOLEAN,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "GuildSettings_pkey" PRIMARY KEY ("guildId")
+);