Implement spec-driven task API with tests, specs, and coverage

[gregapostle]

Summary

Implements a modular, spec-driven task management API including:

• Express-based REST API
• Zod schema validation at boundaries
• Unit and integration test coverage (Vitest)
• Modular architecture (controllers/services/routes/middleware)
• Decomposed specification pack aligned to feature template
• V8-based coverage configuration

Key Highlights

• Deterministic test suite (25 tests passing)
• ~94% statement coverage
• Spec-first workflow enforced
• Compliance with RULES.md and feature-template.md
• Clean repository hygiene (no generated artifacts committed)

Validation Performed

• npm ci
• npm test
• npm run lint
• npm run build
• npm run coverage
• Manual curl smoke tests

Notes

• No runtime logic was modified after final compliance pass.
• Bootstrap and type-only files excluded from coverage for accuracy.
• No external database dependency (in-memory store).

Tag: v1.0.0