refactor(persistence): split event store and consolidate CI updates

[ayagmar]

Summary

• split the event-store facade, database boundary, codecs, schema/migrations, and administration operations without changing the public API
• consolidate the pending Dependabot action and dependency updates into one compatible change
• update setup-node and CodeQL action pins, regenerate the pnpm lockfile, and skip coverage comments for Dependabot PR tokens
• remove redundant TypeScript assertions and format the files required by the newer tooling

Validation

• pnpm run verify:ci
• pnpm audit --audit-level=moderate
• actionlint
• uvx zizmor --pedantic .github/workflows

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 4eb0f960-6126-436c-b5d4-63db45e62583

📥 Commits

Reviewing files that changed from the base of the PR and between eb88704 and 6f7c507.

⛔ Files ignored due to path filters (1)

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

📒 Files selected for processing (30)

• .github/workflows/ci.yml
• .github/workflows/pages.yml
• .github/workflows/performance-baseline.yml
• .github/workflows/release.yml
• .github/workflows/security.yml
• codecov.yml
• package.json
• site/package.json
• src/cli/report-definitions/report-definition-types.ts
• src/cli/terminal-overflow-warning.ts
• src/cli/usage-data-contracts.ts
• src/config/user-config.ts
• src/persistence/event-store-administration.ts
• src/persistence/event-store-codec.ts
• src/persistence/event-store-database.ts
• src/persistence/event-store-history.ts
• src/persistence/event-store-schema.ts
• src/persistence/event-store.ts
• src/render/render-efficiency-report.ts
• src/render/render-trends-report.ts
• src/render/terminal-table.ts
• src/sources/antigravity/antigravity-proto-reader.ts
• src/sources/antigravity/antigravity-row-parser.ts
• src/sources/antigravity/antigravity-source-adapter.ts
• src/sources/read-json-file.ts
• tests/cli/build-efficiency-data.test.ts
• tests/cli/build-trends-data.test.ts
• tests/cli/build-usage-data-parsing.test.ts
• tests/cli/build-usage-data.test.ts
• tests/render/render-trends-share-svg.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch refactor/split-event-store

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[codecov]

Codecov Report

❌ Patch coverage is 89.28571% with 39 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/persistence/event-store-administration.ts	86.18%	11 Missing and 14 partials ⚠️
src/persistence/event-store-codec.ts	91.56%	1 Missing and 6 partials ⚠️
src/persistence/event-store-schema.ts	90.78%	3 Missing and 4 partials ⚠️

📢 Thoughts on this report? Let us know!