chore: add next-phase optimization roadmap (Phases 5–11)

[Copilot]

Full codebase scan of all 18 packages to establish baseline metrics and plan the next development cycle beyond the completed DEVELOPMENT_PLAN.md (Phases 1–4).

Current state (v2.0.1)

Metric	Value
Schema test coverage	76% (73/96 .zod.ts files)
z.any() remaining	8 (filter operators only)
TODO/FIXME across monorepo	24
Adapter implementations	3 stubs
Deprecated items pending removal	5+

Changes

• ROADMAP.md — New root-level roadmap covering Phases 5–11:
  • Phase 5: Spec test coverage → 100% (23 untested schemas identified: 13 system, 5 kernel, 5 other)
  • Phase 6: Runtime hardening — resolve all 24 TODOs (12 core security, 6 driver-memory, 6 other), add missing package tests
  • Phase 7: Adapter implementation — Hono/Next.js/NestJS from stubs to functional
  • Phase 8: Deprecation cleanup & v3.0 breaking change prep
  • Phase 9: DX & tooling (generate types, bundled JSON schema, OpenAPI gen)
  • Phase 10: Performance (lazy schema compilation, bundle size tracking, benchmark suite)
  • Phase 11: Security hardening (sandbox completion, dependency audit, SBOM)
• README.md — Added roadmap section with links
• ARCHITECTURE.md — Added roadmap + studio roadmap to Related Documentation, updated date

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Project	Deployment	Actions	Updated (UTC)
objectstack-studio	Error		Feb 9, 2026 5:40pm
spec	Ready	Preview, Comment	Feb 9, 2026 5:40pm

[Copilot]

Pull request overview

Adds a new root-level roadmap describing the next development cycle (Phases 5–11) after completion of packages/spec/DEVELOPMENT_PLAN.md Phases 1–4, and links it from the main docs.

Changes:

• Introduces ROADMAP.md with baseline metrics plus phased plans for test coverage, runtime hardening, adapter implementation, DX/tooling, performance, and security.
• Adds a “Roadmap” section to README.md linking to the new roadmap and Studio roadmap.
• Updates ARCHITECTURE.md related-documentation links to include the new roadmap and the Studio roadmap.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
ROADMAP.md	New roadmap document with phases 5–11, metrics, and related-document links
README.md	Adds a roadmap section linking to ROADMAP.md and Studio roadmap
ARCHITECTURE.md	Adds roadmap links under Related Documentation and updates “Last Updated”

[Copilot]

The ROADMAP states the current version is 2.0.1 (and CHANGELOG.md also has a 2.0.1 entry dated 2026-02-09), but this row claims RELEASE_NOTES.md is current at v1.2.0. This is internally inconsistent and will confuse readers; update the version reference (or link to the correct release notes/changelog entry) so it matches the stated current version.

Suggested change

	| Release Notes | `RELEASE_NOTES.md` | ✅ Current (v1.2.0) |
	| Release Notes | `RELEASE_NOTES.md` | ✅ Current (v2.0.1) |