feat: Add Product Feature Tracking (PFT) support

[haifeng-li-at-salesforce]

Summary

• Add Product Feature Tracking (PFT) configuration to enable telemetry and observability
• Simplify telemetry service initialization by removing redundant parameters
• Configure o11y upload endpoint and product feature ID for tracking

Changes

This PR includes the following commits:

• a988d75 feat: PFT support
• 0561b09 fix: update productFeatureId

Modified Files

• package.json: Added enableO11y, o11yUploadEndpoint, and productFeatureId configuration
• src/services/CoreExtensionService.ts: Simplified telemetry service initialization by removing explicit parameters (name, aiKey, version) that are now handled internally
• src/types/TelemetryService.ts: Updated initializeService method signature to only require extensionContext

Test Plan

• Tested locally with PFT enabled
• Verified telemetry service initialization works correctly
• Confirmed o11y metrics are uploaded to the configured endpoint
• All existing tests pass

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.33%. Comparing base (c268cb6) to head (e16b092).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #212   +/-   ##
=======================================
  Coverage   81.33%   81.33%           
=======================================
  Files          39       39           
  Lines        1768     1768           
  Branches      249      255    +6     
=======================================
  Hits         1438     1438           
  Misses        330      330           

Files with missing lines	Coverage Δ
src/services/CoreExtensionService.ts	66.66% <100.00%> (ø)
src/utils/constants.ts	100.00% <100.00%> (ø)

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[ben-zhang-at-salesforce]

looks good