Modernize build pipeline and harden production runtime#3

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Copilot wants to merge 9 commits intomainfrom

copilot/upgrade-modernize-nextjs-app

Commits on Jan 3, 2026

Initial plan
Copilot
committed
Phase 1: Critical fixes - build errors, CSS duplicates, type safety

Copilot
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TimInTech
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Phase 2: CI/Build stability - Playwright config, CI workflow improvements

Copilot
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TimInTech
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Phase 3: Security hardening - headers, Docker limits, vulnerability fixes

Copilot
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TimInTech
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Phase 4: PWA validation - manifest metadata, offline support verified

Copilot
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TimInTech
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Phase 5: Documentation updates - README, AUDIT, editorconfig

Copilot
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TimInTech
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Phase 6: Code review fixes - HSTS duration, Docker caps, db schema clarity

Copilot
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TimInTech
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fix(deps): sync pnpm-lock.yaml with package.json

Copilot
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TimInTech
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fix(e2e): use Promise.all for file chooser to avoid race condition

Copilot
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TimInTech
committed