feat(ts): add coverage_threshold input for quality gate

[emmanuelm41]

Summary

• Adds coverage threshold inputs to _checks-ts.yaml workflow for all four metrics:
  • coverage_threshold_lines
  • coverage_threshold_statements
  • coverage_threshold_functions
  • coverage_threshold_branches
• Quality gate step reads coverage/coverage-summary.json and fails if any enabled threshold is not met
• All default to 0 (disabled) for backwards compatibility

Usage

uses: zondax/_workflows/.github/workflows/_checks-ts.yaml@v5
with:
  enable_coverage: true
  coverage_threshold_lines: 36
  coverage_threshold_statements: 35
  coverage_threshold_functions: 32
  coverage_threshold_branches: 31

Test plan

• Test with kunobi-frontend using current coverage values as thresholds

[Copilot]

Pull request overview

This PR adds quality gate functionality to the TypeScript checks workflow by introducing configurable coverage thresholds for four metrics (lines, statements, functions, branches). The implementation parses the coverage-summary.json file generated by the test coverage command and fails the workflow if any enabled threshold is not met.

Key Changes:

• Added four input parameters for coverage thresholds (lines, statements, functions, branches), all defaulting to 0 for backwards compatibility
• Implemented a new quality gate step that validates coverage metrics against configured thresholds using bash and jq
• Positioned the quality gate after the Vitest Coverage Report step to ensure coverage data is available

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[emmanuelm41]

Suggested threshold values for kunobi-frontend

Based on current coverage:

Metric	Current	Suggested Threshold
Lines	36.71%	coverage_threshold_lines: 36
Statements	35.32%	coverage_threshold_statements: 35
Functions	32.06%	coverage_threshold_functions: 32
Branches	31.16%	coverage_threshold_branches: 31

ts-checks-linux:
  uses: zondax/_workflows/.github/workflows/_checks-ts.yaml@v5
  with:
    enable_coverage: true
    coverage_threshold_lines: 36
    coverage_threshold_statements: 35
    coverage_threshold_functions: 32
    coverage_threshold_branches: 31

[emmanuelm41]

Addressed all Copilot review comments:

1. ✅ Added error handling for jq extraction - New get_coverage_value() helper validates JSON parsing, checks for null/empty values, and verifies numeric format
2. ✅ Use numeric comparison - Now using awk for threshold > 0 check instead of string comparison
3. ✅ Removed hardcoded 'pnpm' - Changed to generic "Run your test:coverage script locally"
4. ✅ Use awk instead of bc - Replaced bc with awk for portable floating point comparison