Remove legacy team home components

[potter-sun]

Summary

• Remove unused legacy Team Home experiment components that encoded current-session-team / Scope-as-Team assumptions.
• Delete their shared helper module now that no active route imports those surfaces.
• Keep the real /teams route on the current Team home implementation.

Fixes #587

Validation

• npm --prefix apps/aevatar-console-web run tsc
• npm --prefix apps/aevatar-console-web test -- --runTestsByPath src/routesConfig.test.ts src/pages/teams/index.test.tsx src/pages/teams/home.test.tsx --runInBand

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.13%. Comparing base (6dfd516) to head (5ca8a1c).

@@            Coverage Diff             @@
##              dev     #650      +/-   ##
==========================================
- Coverage   72.13%   72.13%   -0.01%     
==========================================
  Files        1261     1261              
  Lines       91065    91065              
  Branches    11924    11924              
==========================================
- Hits        65693    65687       -6     
- Misses      20673    20678       +5     
- Partials     4699     4700       +1     

Flag	Coverage Δ
ci	72.13% <ø> (-0.01%)	⬇️

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see 3 files with indirect coverage changes

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