fix: disable dts generation, add dist to gitignore

dts build fails because openclaw/plugin-sdk is not available at compile time
(only at runtime via OpenClaw gateway). JS bundle (314KB ESM) builds fine.

openclaw-memoria-port/.gitignore

@@ -1,3 +1,4 @@
 node_modules/
+dist/
 *.db
 install.sh.bak-v34

openclaw-memoria-port/tsup.config.ts

@@ -5,7 +5,7 @@ export default defineConfig({
   entry: ["index.ts"],
   format: ["esm"],
   splitting: true,
-  dts: true,
+  dts: false,
   sourcemap: true,
   clean: true,
   external: [/^node:/, /^openclaw\//, "fs", "os", "path", "url", "readline", "module", "better-sqlite3"],