[EPAC-2029]: add provincial Hansard router scaffold

[riddim-developer-bot]

Why

EPAC-2029 establishes the routing and scaffold layer that provincial Hansard adapters will plug into while keeping the application layer behind the HansardRepository port.

What changed

• Added JurisdictionRoutedHansardRepository and app startup DI that registers the federal SwiftData-backed repository under .federal.
• Added HTMLHansardScaffold helpers and ProvincialHansardAdapter.md for future province-specific adapter work.
• Extended HansardSpeakerParser coverage for French speaker prefixes and moved FixtureHansardRepository into shared Hansard test fixtures.
• Added the Hansard adapter boundary check and catalog placeholders for each provincial adapter path.

Trade-offs not taken

• Did not implement province-specific adapters; those remain in the downstream provincial issues.
• Kept the router as a simple jurisdiction map instead of introducing a registry or priority system.

Test plan

• PASS: scripts/check-boundaries.sh
• PASS: cd ios && make build
• PASS: cd ios && xcodebuild build-for-testing -project epac.xcodeproj -scheme epac -destination 'platform=iOS Simulator,id=A42F2FBA-FC7A-4EFF-8F85-C402A8850ED6' -derivedDataPath .build -quiet | xcbeautify --quiet
• PASS: swiftlint lint --strict ios/epac/epacApp.swift ios/epac/Util/HansardSpeakerParser.swift ios/epac/Util/HansardRepositoryEnvironment.swift ios/epac/Data/Adapters/Hansard/JurisdictionRoutedHansardRepository.swift ios/epac/Data/Adapters/Hansard/HTMLHansardScaffold.swift ios/epac/Views/ContentView.swift ios/epac/Views/Calendar/SittingCalendarView.swift ios/epac/Views/Calendar/SittingLoaderView.swift ios/epac/Views/Chat/SpeechView.swift ios/epacTests/Data/HansardSpeakerParserTests.swift ios/epacTests/Data/JurisdictionRoutedHansardRepositoryTests.swift ios/epacTests/Fixtures/Hansard/FixtureHansardRepository.swift
• PASS with warnings: python3 scripts/localization/check_localizations.py --github-warnings (pre-existing missing key warning: onboarding.welcome.title)
• BLOCKED by local simulator launch: cd ios && make test compiled app and test targets, then failed installing/launching the runner with IDEPseudoTerminalDomain Code 7, underlying NSPOSIXErrorDomain Code 6: Device not configured, for simulator A42F2FBA-FC7A-4EFF-8F85-C402A8850ED6. Restarting the simulator did not clear the launch failure.
• BLOCKED by pre-existing lint debt outside this change: full swiftlint --strict fails on existing app clip, widget, UI-test, and CabinetService violations; changed Swift files pass strict lint as listed above.

Reviewer-Boundary: review-only

Resolves EPAC-2029
Release-Note: Omit - internal architecture scaffold only.