feat: integrate invitation access, world NPCs, and deployment

src/business/invitation/migrations/create-invitation-codes.sql

@@ -0,0 +1,25 @@
+CREATE TABLE IF NOT EXISTS invitation_codes (
+  id BIGINT NOT NULL AUTO_INCREMENT,
+  code_hash CHAR(64) NOT NULL,
+  code_prefix VARCHAR(20) NOT NULL,
+  max_uses INT UNSIGNED NOT NULL DEFAULT 1,
+  used_count INT UNSIGNED NOT NULL DEFAULT 0,
+  expires_at DATETIME NULL,
+  status ENUM('active','revoked') NOT NULL DEFAULT 'active',
+  note VARCHAR(255) NULL,
+  created_by BIGINT NULL,
+  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (id), UNIQUE KEY uq_invitation_codes_hash (code_hash), KEY idx_invitation_codes_created_at (created_at)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+CREATE TABLE IF NOT EXISTS invitation_code_usages (
+  id BIGINT NOT NULL AUTO_INCREMENT,
+  invitation_code_id BIGINT NOT NULL,
+  user_id BIGINT NOT NULL,
+  email VARCHAR(100) NOT NULL,
+  used_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (id), UNIQUE KEY uq_invitation_usage_code_user (invitation_code_id, user_id),
+  KEY idx_invitation_usage_user (user_id),
+  CONSTRAINT fk_invitation_usage_code FOREIGN KEY (invitation_code_id) REFERENCES invitation_codes(id),
+  CONSTRAINT fk_invitation_usage_user FOREIGN KEY (user_id) REFERENCES users(id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;