docs: add pnpm seed to README and clarify userData path in AGENTS

Author: RubenGlez

AGENTS.md

@@ -2,4 +2,4 @@
 
 **Freesound API key:** Set inside the app's Settings UI (not a `.env` file). Stored at `$USERDATA/settings.json` (`app.getPath('userData')`). Only needed to use Freesound search inside the app — not required for seeding.
 
-**Seed script:** Run `pnpm dev` at least once first (creates the SQLite database), then `pnpm seed`. Audio files are bundled in `scripts/seed-audio/` — no API key or network access needed.
+**Seed script:** Run `pnpm dev` at least once first (creates the SQLite database), then `pnpm seed`. Audio files are bundled in `scripts/seed-audio/` — no API key or network access needed. userData is always at `~/Library/Application Support/samplebyte/` in both dev and production builds (prior to the `app.setName()` fix, dev mode used `~/Library/Application Support/Electron/` instead).

README.md

@@ -121,6 +121,8 @@ pnpm dev   # development (hot reload)
 pnpm build # production build
 ```
 
+Run `pnpm seed` after the first `pnpm dev` to populate the database with demo projects and chops (no API key or network needed).
+
 Requires Node.js v18+ and pnpm. The project pins its pnpm version in `package.json`.
 
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