Add D1 migration baseline

cloudflare/src/bindings.ts

@@ -2,6 +2,19 @@ export interface ElyKvNamespace {
   get(key: string): Promise<string | null>;
 }
 
+export interface ElyD1PreparedStatement {
+  bind(...values: unknown[]): ElyD1PreparedStatement;
+  first<T = unknown>(): Promise<T | null>;
+  all<T = unknown>(): Promise<{ results: T[] }>;
+  run(): Promise<unknown>;
+}
+
+export interface ElyD1Database {
+  prepare(query: string): ElyD1PreparedStatement;
+  batch<T = unknown>(statements: ElyD1PreparedStatement[]): Promise<T[]>;
+  exec(query: string): Promise<unknown>;
+}
+
 export interface ElyRateLimit {
   limit(options: { key: string }): Promise<{ success: boolean }>;
 }
@@ -17,6 +30,7 @@ export interface ElyAnalyticsDataset {
 }
 
 export interface Env {
+  ELY_DB: ElyD1Database;
   ELY_KV: ElyKvNamespace;
   ELY_RATE_LIMITER: ElyRateLimit;
   ELY_API_AUDIT: ElyAnalyticsDataset;