refactor(web): migrate shell navigation app context consumers

[hyoban]

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Summary

• Related to [Refactor/Chore] Clarify and decouple web AppContext bootstrap dependencies #38514.
• Migrates shell navigation AppContext consumers to direct bootstrap atom reads.
• Replaces broad context reads in main navigation, detail sidebar, and app sidebar surfaces with field-level app context state atoms.
• Adds scalar role flag atoms for editor and dataset operator checks used by the navigation shell.
• Updates affected shell/sidebar tests to mock the exact app-context-state atoms consumed by production code.

From Codex

Screenshots

Before	After
N/A	N/A

Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint && make type-check (backend) and cd web && pnpm exec vp staged (frontend) to appease the lint gods

Validation

• pnpm -C web exec eslint context/app-context-state.ts __tests__/utils/mock-app-context-state.ts app/components/main-nav/index.tsx app/components/main-nav/layout.tsx app/components/main-nav/components/web-apps-section.tsx app/components/main-nav/components/account-section.tsx app/components/main-nav/components/support-menu.tsx app/components/main-nav/components/help-menu.tsx app/components/main-nav/components/workspace-card.tsx app/components/detail-sidebar/index.tsx app/components/app-sidebar/app-detail-section.tsx app/components/app-sidebar/dataset-detail-section.tsx app/components/app-sidebar/app-info/index.tsx app/components/app-sidebar/app-info/app-info-detail-panel.tsx app/components/app-sidebar/dataset-info/dropdown.tsx app/components/app-sidebar/snippet-info/dropdown.tsx app/components/main-nav/__tests__/index.spec.tsx app/components/main-nav/__tests__/layout.spec.tsx app/components/main-nav/components/__tests__/support-menu.spec.tsx app/components/main-nav/components/__tests__/workspace-card.spec.tsx app/components/detail-sidebar/__tests__/index.spec.tsx app/components/app-sidebar/__tests__/app-detail-section.spec.tsx app/components/app-sidebar/__tests__/dataset-detail-section.spec.tsx app/components/app-sidebar/app-info/__tests__/app-info-detail-panel.spec.tsx app/components/app-sidebar/dataset-info/__tests__/index.spec.tsx app/components/app-sidebar/dataset-info/__tests__/dropdown-callbacks.spec.tsx app/components/app-sidebar/snippet-info/__tests__/dropdown.spec.tsx --cache --quiet
• pnpm -C web type-check
• pnpm -C web test app/components/main-nav/__tests__/index.spec.tsx app/components/main-nav/__tests__/layout.spec.tsx app/components/main-nav/components/__tests__/support-menu.spec.tsx app/components/main-nav/components/__tests__/workspace-card.spec.tsx app/components/detail-sidebar/__tests__/index.spec.tsx app/components/app-sidebar/__tests__/app-detail-section.spec.tsx app/components/app-sidebar/__tests__/dataset-detail-section.spec.tsx app/components/app-sidebar/app-info/__tests__/app-info-detail-panel.spec.tsx app/components/app-sidebar/dataset-info/__tests__/index.spec.tsx app/components/app-sidebar/dataset-info/__tests__/dropdown-callbacks.spec.tsx app/components/app-sidebar/snippet-info/__tests__/dropdown.spec.tsx

[codecov]

Codecov Report

❌ Patch coverage is 93.93939% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.34%. Comparing base (af5b08a) to head (1729a1b).

Files with missing lines	Patch %	Lines
web/context/app-context-state.ts	50.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #38560   +/-   ##
=======================================
  Coverage   85.34%   85.34%           
=======================================
  Files        5013     5013           
  Lines      265942   265958   +16     
  Branches    50558    50560    +2     
=======================================
+ Hits       226979   226994   +15     
- Misses      34510    34511    +1     
  Partials     4453     4453           

Flag	Coverage Δ
dify-ui	94.61% <ø> (ø)
web	84.91% <93.93%> (+<0.01%)	⬆️

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