chore: Add shared Vitest coverage config across all packages

[KiwiGaze]

Summary

• Extract shared Vitest coverage configuration into @simplifying/tsconfig/vitest.shared so all packages use identical coverage settings (provider, reporters, include/exclude patterns)
• Each package's vitest.config.ts now imports and spreads sharedCoverageConfig instead of duplicating settings
• Add test:coverage task to turbo.json for workspace-wide coverage runs
• Expand web app coverage includes to also capture .tsx files

Test plan

• Run pnpm test:run — all existing tests pass
• Run pnpm test:coverage — coverage runs across all packages via turbo
• Verify individual package coverage still works (e.g., pnpm --filter @simplifying/task test:coverage)

Summary by CodeRabbit

• Chores
  • Added test:coverage scripts and a coverage adapter dependency across packages to enable Vitest coverage runs.
  • Introduced a shared coverage configuration to standardize reporting (provider, reporters, include/exclude patterns).
  • Updated build/task configuration to add a top-level coverage task and include the shared config in global dependencies.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

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Run ID: 56778e71-ddea-47f9-98d8-4df57031a8e2

📥 Commits

Reviewing files that changed from the base of the PR and between 676fc5d and 4b767f2.

📒 Files selected for processing (3)

• packages/api-server/package.json
• packages/inbox/package.json
• packages/task/package.json

🚧 Files skipped from review as they are similar to previous changes (2)

• packages/task/package.json
• packages/api-server/package.json

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Walkthrough

Adds a shared Vitest coverage configuration, wires it into package-level Vitest configs, adds test:coverage scripts and @vitest/coverage-v8 devDeps across packages, and registers a turbo task for test:coverage; also expands web coverage patterns to include TSX files.

Changes

Cohort / File(s)	Summary
Monorepo root package.json, turbo.json	Replace root test:coverage to use turbo run test:coverage, add test:coverage:web script, and add a new Turbo task test:coverage with outputs coverage/** and env DATABASE_URL.
Shared config package packages/tsconfig/package.json, packages/tsconfig/vitest.shared.ts	Add vitest.shared.ts export, mark package as ESM, and introduce sharedCoverageConfig exporting Vitest test.coverage settings (provider v8, reporters, include/exclude globs).
App web apps/web/package.json, apps/web/vitest.config.ts	Add test:coverage script; expand Vitest coverage include patterns to add .tsx variants.
Packages (scripts & deps) packages/*/package.json (e.g., packages/api-client/..., packages/api-server/..., packages/errors/..., packages/event/..., packages/inbox/..., packages/job-queue/..., packages/prisma/..., packages/task-group/..., packages/task-sync/..., packages/task/...)	Add test:coverage scripts and add @vitest/coverage-v8 to devDependencies (where applicable).
Packages (Vitest config augmentation) packages/*/vitest.config.ts (e.g., packages/api-client/..., packages/api-server/..., packages/calendar-sync/..., packages/errors/..., packages/event/..., packages/inbox/..., packages/job-queue/..., packages/prisma/..., packages/task-group/..., packages/task-sync/..., packages/task/...)	Import and spread sharedCoverageConfig into each package's Vitest defineConfig test object (minor alias/comment cleanups in some files).

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• refactor(core): Decouple package tests from app-internal server-only mock #149: Modifies many of the same package vitest.config.ts files and test configuration aliases; likely overlaps with the shared coverage config changes.
• Refactor/monorepo structure #42: Alters monorepo tooling/config (turbo.json and tsconfig exports) that this change expands on.
• feat(errors): Introduce error handling package with semantic error co… #49: Touches packages/errors/package.json and packages/errors/vitest.config.ts, directly related to the per-package coverage script and config updates.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'chore: Add shared Vitest coverage config across all packages' directly and comprehensively describes the main objective of the changeset: extracting shared Vitest coverage configuration and applying it across all packages.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Peer Dependency Consistency	✅ Passed	PR does not modify any peerDependencies in any package.json files; no peer dependency consistency issues detected.
Api Contract Layer Conventions	✅ Passed	The custom check for API contract layer conventions applies only to new or modified Next.js API route handlers, which this PR does not modify.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/shared-vitest-config

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[coderabbitai]

Actionable comments posted: 3

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@packages/api-server/package.json`:
- Line 19: Update the "test:coverage" npm script in package.json to include the
--passWithNoTests flag so it behaves like the other test scripts; locate the
"test:coverage" entry and append --passWithNoTests to the existing command
("vitest run --coverage") ensuring the script becomes "vitest run --coverage
--passWithNoTests" to avoid non-zero exit codes when no tests are present.

In `@packages/inbox/package.json`:
- Line 20: The "test:coverage" npm script in package.json omits the
--passWithNoTests flag; update the "test:coverage" script entry (script name
"test:coverage") to include --passWithNoTests so it matches "test" and
"test:run" and will succeed even when no tests exist, ensuring consistency
across scripts.

In `@packages/task/package.json`:
- Around line 19-20: The test:coverage npm script currently runs "vitest run
--coverage" which fails with exit code 1 when no tests exist; update the
"test:coverage" script in package.json to include the --passWithNoTests flag
(making it mirror "test:run") so it becomes "vitest run --coverage
--passWithNoTests", ensuring workspace coverage runs don't fail for packages
without tests.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 4c2a0dac-a41f-40b9-9340-bdafaa71ea0a

📥 Commits

Reviewing files that changed from the base of the PR and between d6c1ec2 and 676fc5d.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml, !**/pnpm-lock.yaml

📒 Files selected for processing (28)

• apps/web/package.json
• apps/web/vitest.config.ts
• package.json
• packages/api-client/package.json
• packages/api-client/vitest.config.ts
• packages/api-server/package.json
• packages/api-server/vitest.config.ts
• packages/calendar-sync/package.json
• packages/calendar-sync/vitest.config.ts
• packages/errors/package.json
• packages/errors/vitest.config.ts
• packages/event/package.json
• packages/event/vitest.config.ts
• packages/inbox/package.json
• packages/inbox/vitest.config.ts
• packages/job-queue/package.json
• packages/job-queue/vitest.config.ts
• packages/prisma/package.json
• packages/prisma/vitest.config.ts
• packages/task-group/package.json
• packages/task-group/vitest.config.ts
• packages/task-sync/package.json
• packages/task-sync/vitest.config.ts
• packages/task/package.json
• packages/task/vitest.config.ts
• packages/tsconfig/package.json
• packages/tsconfig/vitest.shared.ts
• turbo.json