Fix settings boolean parsing robustness

Merge branch 'main' into codex/fix-deployment-runtime-error

Add startup import guardrails for HF Space env robustness

Serve frontend SPA in Docker runtime and keep bool env parsing

Fix HF Space secret fallback for Europeana API key

Add structured docs set under docs/ for MVP governance

Merge branch 'main' into codex/develop-global-implementation-plan

Fix frontend API base URL fallback for local dev and Docker

Merge branch 'main' into codex/develop-global-implementation-plan-1bp8sh

feat(lot6): add Bodleian and Europeana connectors with fixture-first strategy

feat(lot5): add Gallica connector with normalized mapping and fixture fallback

feat(frontend): implement lot 3 minimal Mirador reading workspace