fix(web-ui): add documentation link and version-aware URLs

[ReenigneArcher]

Description

Add a Documentation button to ResourceCard and make docs links version-aware based on installed vs GitHub release. ResourceCard: register BookOpen icon, new installedVersionNotStable prop and documentationUrl computed property. App shell (apps.html/index.html): import SunshineVersion, fetch local version from ./api/config and latest GitHub release, compare versions to determine documentationBaseUrl and pass installedVersionNotStable into Resource-Card. Add "documentation" localization string to en.json. Docs: replace ~ with $(HOME) in app examples for clarity. AGENTS.md: add note to only update the en localization (no locale variants).

Screenshot

Issues Fixed or Closed

Roadmap Issues

Type of Change

• feat: New feature (non-breaking change which adds functionality)
• fix: Bug fix (non-breaking change which fixes an issue)
• docs: Documentation only changes
• style: Changes that do not affect the meaning of the code (white-space, formatting, missing semicolons, etc.)
• refactor: Code change that neither fixes a bug nor adds a feature
• perf: Code change that improves performance
• test: Adding missing tests or correcting existing tests
• build: Changes that affect the build system or external dependencies
• ci: Changes to CI configuration files and scripts
• chore: Other changes that don't modify src or test files
• revert: Reverts a previous commit
• BREAKING CHANGE: Introduces a breaking change (can be combined with any type above)

Checklist

• Code follows the style guidelines of this project
• Code has been self-reviewed
• Code has been commented, particularly in hard-to-understand areas
• Code docstring/documentation-blocks for new or existing methods/components have been added or updated
• Unit tests have been added or updated for any new or modified functionality

AI Usage

• None: No AI tools were used in creating this PR
• Light: AI provided minor assistance (formatting, simple suggestions)
• Moderate: AI helped with code generation or debugging specific parts
• Heavy: AI generated most or all of the code changes

[codecov]

Bundle Report

Changes will increase total bundle size by 1.41kB (0.09%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sunshine-esm	796.04kB	1.41kB (0.18%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: sunshine-esm

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
assets/createLucideIcon-*.js	30 bytes	356.7kB	0.01%
assets/index-*.js	-965 bytes	45.89kB	-2.06%
assets/apps-*.js	532 bytes	12.49kB	4.45%
assets/ResourceCard-*.js	777 bytes	2.63kB	41.82% ⚠️
assets/sunshine_version-*.js (New)	1.03kB	1.03kB	100.0% 🚀

Files in assets/createLucideIcon-*.js:

• ./src_assets/common/assets/web/public/assets/locale/en.json → Total Size: 40.04kB

Files in assets/index-*.js:

• ./src_assets/common/assets/web/index.html → Total Size: 0 bytes

Files in assets/apps-*.js:

• ./src_assets/common/assets/web/apps.html → Total Size: 0 bytes

Files in assets/ResourceCard-*.js:

• ./src_assets/common/assets/web/ResourceCard.vue → Total Size: 4.41kB

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 16.14%. Comparing base (7822c1f) to head (1f36a0c).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5176      +/-   ##
==========================================
+ Coverage   15.61%   16.14%   +0.52%     
==========================================
  Files         110      111       +1     
  Lines       23648    23305     -343     
  Branches    10393    10410      +17     
==========================================
+ Hits         3693     3762      +69     
+ Misses      17690    15359    -2331     
- Partials     2265     4184    +1919     

Flag	Coverage Δ
Archlinux	11.21% <ø> (ø)
FreeBSD-aarch64	?
Linux-AppImage	12.13% <ø> (ø)
Windows-AMD64	14.85% <ø> (?)
Windows-ARM64	13.20% <ø> (ø)
macOS-arm64	18.96% <ø> (?)
macOS-x86_64	18.33% <ø> (-0.02%)	⬇️

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see 86 files with indirect coverage changes

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