fix(examples): emit generated contract into tracked src/prisma (TML-2722)

[wmadden]

At a glance

paradedb-demo and prisma-next-demo-sqlite import their generated contract from src/prisma/, but prisma-next contract emit was writing to prisma/. The one-line config fix, per example:

// prisma-next.config.ts
export default defineConfig({
  contract: './prisma/contract.ts',
+ outputPath: './src/prisma',
});

Before, every emit dropped stray untracked prisma/contract.{d.ts,json} files while the tracked src/prisma/ copies were never regenerated (kept current only by manual copying — which is exactly how two authoring sources got accidentally deleted during TML-2714).

The decision

Point each example's emit outputPath at the tracked location (src/prisma), so emit regenerates the canonical files in place and produces no stray output. The authoring source stays at prisma/contract.ts; the app's import path is unchanged.

How we got here

In the family defineConfig shorthand, contract: './prisma/contract.ts' drove both the authoring source path and — via deriveOutputPath() — the default emit output (./prisma/contract.json). Since the apps actually consume src/prisma/ (next to db.ts), emit and the tracked artifacts had diverged. Setting outputPath explicitly decouples the two.

One parity gap surfaced: @prisma-next/sqlite's defineConfig didn't accept outputPath (postgres and mongo already did), so the sqlite example couldn't be fixed config-only. This adds it, mirroring postgres, with tests.

The change

• examples/paradedb-demo + examples/prisma-next-demo-sqlite: add outputPath: './src/prisma'.
• @prisma-next/sqlite defineConfig: accept outputPath (mirrors postgres) + tests.
• Removed the stray untracked prisma/contract.{d.ts,json} from both examples. No tracked-artifact diffs — src/prisma/ was already in sync.

Verification

• pnpm build
• pnpm fixtures:check (clean; a second fixtures:emit leaves the tree clean — no stray prisma/ artifacts)
• pnpm --filter paradedb-demo typecheck · pnpm --filter prisma-next-demo-sqlite typecheck
• @prisma-next/sqlite config tests (40) · pnpm lint:deps

Alternatives considered

• Move the authoring contract.ts into src/prisma/ and colocate everything. Rejected: larger churn that changes the authoring layout these examples deliberately use (authoring in prisma/, generated + wiring in src/prisma/), for no functional gain.
• Special-case a copy step in the fixtures tooling. Rejected: papers over the root cause (the misaligned outputPath) and keeps the manual-sync fragility.

Refs: TML-2722. Surfaced during TML-2714.

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between e15220b and 243b36e.

📒 Files selected for processing (4)

• examples/paradedb-demo/prisma-next.config.ts
• examples/prisma-next-demo-sqlite/prisma-next.config.ts
• packages/3-extensions/sqlite/src/config/define-config.ts
• packages/3-extensions/sqlite/test/config/define-config.test.ts

✨ Finishing Touches

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• Create PR with unit tests
• Commit unit tests in branch tml-2722-fix-example-emit-output-dir

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commit: 243b36e