refactor(web): migrate legacy tooltip callers

[lyzno1]

Summary

• migrate remaining legacy tooltip call sites to compound Tooltip, Infotip, or Popover based on content semantics
• document Tooltip/Popover/Infotip usage boundaries and tighten the legacy tooltip import restriction
• remove the legacy web base tooltip implementation directory

Verification

• pnpm -C web type-check
• pnpm -C web test --run

[codecov]

Codecov Report

❌ Patch coverage is 69.87952% with 25 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.79%. Comparing base (d5ad6ae) to head (70f9797).

Files with missing lines	Patch %	Lines
...w/nodes/_base/components/switch-plugin-version.tsx	0.00%	12 Missing ⚠️
...components/workflow/variable-inspect/listening.tsx	0.00%	7 Missing ⚠️
...es/trigger-plugin/components/trigger-form/item.tsx	0.00%	3 Missing ⚠️
...r-page/model-parameter-modal/status-indicators.tsx	83.33%	1 Missing ⚠️
...tail-panel/subscription-list/subscription-card.tsx	50.00%	1 Missing ⚠️
.../_base/components/mcp-tool-not-support-tooltip.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #35961      +/-   ##
==========================================
- Coverage   85.80%   85.79%   -0.01%     
==========================================
  Files        4463     4460       -3     
  Lines      209623   209440     -183     
  Branches    39268    39211      -57     
==========================================
- Hits       179866   179696     -170     
+ Misses      26559    26552       -7     
+ Partials     3198     3192       -6     

Flag	Coverage Δ
dify-ui	94.23% <ø> (ø)
web	86.74% <69.87%> (-0.02%)	⬇️

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[CodingOnStar]

LGTM