chore(ci): update PR coverage requirement from 90% to 80%

This commit modifies the CI workflow to lower the required pull request coverage from 90% to 80%. Corresponding updates are made in the documentation to reflect this change, ensuring consistency across the project guidelines.

Author: char2cs

.github/workflows/ci.yml

@@ -228,12 +228,12 @@ jobs:
           PR_COVERAGE=$((COVERED_LINES * 100 / TOTAL_LINES))
           echo "PR coverage: ${PR_COVERAGE}%"
           
-          if [ $PR_COVERAGE -lt 90 ]; then
-            echo "❌ PR coverage ${PR_COVERAGE}% is below required 90%"
+          if [ $PR_COVERAGE -lt 80 ]; then
+            echo "❌ PR coverage ${PR_COVERAGE}% is below required 80%"
             exit 1
           fi
           
-          echo "✅ PR coverage ${PR_COVERAGE}% meets requirement (≥90%)"
+          echo "✅ PR coverage ${PR_COVERAGE}% meets requirement (≥80%)"
         else
           echo "ℹ️ No coverage data to calculate for PR changes"
         fi
@@ -312,7 +312,7 @@ jobs:
         echo "- ✅ Branch follows the defined branching model"
         echo "- ✅ Code compiles successfully"
         echo "- ✅ Overall test coverage ≥ 80%"
-        echo "- ✅ PR coverage ≥ 90%"
+        echo "- ✅ PR coverage ≥ 80%"
         echo "- ✅ Code quality and security checks passed"
         echo ""
         echo "🎉 This PR is ready for review!"

docs/branching-model.md

@@ -21,7 +21,7 @@ Quiver follows a **Git Flow-inspired branching model** with strict rules for pul
 1. **Protected Branches**: `master` and `develop` are protected branches
 2. **PR-Only Integration**: All changes must go through pull requests
 3. **Comprehensive CI**: Every PR runs automated checks
-4. **Quality Gates**: Minimum 80% overall coverage, 90% PR coverage
+4. **Quality Gates**: Minimum 80% overall coverage, 80% PR coverage
 
 ## Branch Types
 
@@ -123,7 +123,7 @@ The CI pipeline runs **only on pull requests** and consists of four main stages:
 
 **Coverage Requirements**:
 - **Overall Project Coverage**: ≥ 80%
-- **PR Coverage**: ≥ 90% (for changed files)
+- **PR Coverage**: ≥ 80% (for changed files)
 
 **Process**:
 1. Run all tests with race detection
@@ -152,7 +152,7 @@ All stages must pass for the PR to be considered valid:
 - ✅ Branch follows the defined branching model  
 - ✅ Code compiles successfully
 - ✅ Overall test coverage ≥ 80%
-- ✅ PR coverage ≥ 90%
+- ✅ PR coverage ≥ 80%
 - ✅ Code quality and security checks passed
 
 🎉 This PR is ready for review!
@@ -296,7 +296,7 @@ make pr-checks
 2. Remove unused/dead code
 3. Check `coverage.html` report for specific areas
 
-**Problem**: `❌ PR coverage 85% is below required 90%`
+**Problem**: `❌ PR coverage 75% is below required 80%`
 
 **Solutions**:
 1. Add tests for all new/changed code

docs/contributing-guide.md

@@ -252,7 +252,7 @@ type ArrowsInterface interface {
 
 ### Coverage Requirements
 - **Overall Project Coverage**: ≥ 80%
-- **Pull Request Coverage**: ≥ 90%
+- **Pull Request Coverage**: ≥ 80%
 
 ### Test Structure
 ```

docs/development-setup.md

@@ -235,7 +235,7 @@ make test-docker
 ### Coverage Requirements
 
 - **Overall Project Coverage**: ≥ 80%
-- **Pull Request Coverage**: ≥ 90%
+- **Pull Request Coverage**: ≥ 80%
 
 ### Test Structure
 

docs/git-workflow.md

@@ -11,7 +11,7 @@ Quiver follows a **Git Flow-inspired branching model** with strict rules for pul
 1. **Protected Branches**: `master` and `develop` are protected branches
 2. **PR-Only Integration**: All changes must go through pull requests
 3. **Comprehensive CI**: Every PR runs automated checks
-4. **Quality Gates**: Minimum 80% overall coverage, 90% PR coverage
+4. **Quality Gates**: Minimum 80% overall coverage, 80% PR coverage
 
 ## Branch Types
 
@@ -113,7 +113,7 @@ The CI pipeline runs **only on pull requests** and consists of four main stages:
 
 **Coverage Requirements**:
 - **Overall Project Coverage**: ≥ 80%
-- **PR Coverage**: ≥ 90% (for changed files)
+- **PR Coverage**: ≥ 80% (for changed files)
 
 **Process**:
 1. Run all tests with race detection
@@ -142,7 +142,7 @@ All stages must pass for the PR to be considered valid:
 - ✅ Branch follows the defined branching model  
 - ✅ Code compiles successfully
 - ✅ Overall test coverage ≥ 80%
-- ✅ PR coverage ≥ 90%
+- ✅ PR coverage ≥ 80%
 - ✅ Code quality and security checks passed
 
 🎉 This PR is ready for review!
@@ -286,7 +286,7 @@ make pr-checks
 2. Remove unused/dead code
 3. Check `coverage.html` report for specific areas
 
-**Problem**: `❌ PR coverage 85% is below required 90%`
+**Problem**: `❌ PR coverage 75% is below required 80%`
 
 **Solutions**:
 1. Add tests for all new/changed code