refactor(ci): encode line offsets in tracker markers

Markers now self-document their position: 'OFFSET=N' means the target
row is N lines below the marker. Workflow extracts offset dynamically
via sed, no hardcoded values.

Format: <!-- TRACKER:<NAME> OFFSET=<N> -->

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/gitea-tracker.yml

@@ -34,9 +34,11 @@ jobs:
           NEW_VERSION="${NEW_VERSION#v}"
           echo "New Gitea version: $NEW_VERSION"
 
-          # Read current max-tested: marker is above table, data row at marker + 3
+          # Parse marker line AND embedded OFFSET to locate the data row
-          MARKER_LINE=$(grep -n 'TRACKER:QUICK-REF-MAX' COMPATIBILITY.md | cut -d: -f1)
+          MARKER_INFO=$(grep -n 'TRACKER:QUICK-REF-MAX' COMPATIBILITY.md)
-          CURRENT=$(sed -n "$((MARKER_LINE + 3))p" COMPATIBILITY.md | awk -F'|' '{gsub(/\*| /, "", $4); print $4}')
+          MARKER_LINE=$(echo "$MARKER_INFO" | cut -d: -f1)
+          OFFSET=$(echo "$MARKER_INFO" | sed 's/.*OFFSET=\([0-9]*\).*/\1/')
+          CURRENT=$(sed -n "$((MARKER_LINE + OFFSET))p" COMPATIBILITY.md | awk -F'|' '{gsub(/\*| /, "", $4); print $4}')
           echo "Current max tested: $CURRENT"
 
           echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
@@ -54,9 +56,11 @@ jobs:
         if: steps.version.outputs.skip != 'true'
         run: |
           NEW="${{ steps.version.outputs.new_version }}"
-          # Quick Reference data row is at marker + 3 (marker → header → separator → data)
+          # Parse marker line and embedded OFFSET to locate the data row
-          MARKER=$(grep -n 'TRACKER:QUICK-REF-MAX' COMPATIBILITY.md | cut -d: -f1)
+          MARKER_INFO=$(grep -n 'TRACKER:QUICK-REF-MAX' COMPATIBILITY.md)
-          TARGET=$((MARKER + 3))
+          MARKER=$(echo "$MARKER_INFO" | cut -d: -f1)
+          OFFSET=$(echo "$MARKER_INFO" | sed 's/.*OFFSET=\([0-9]*\).*/\1/')
+          TARGET=$((MARKER + OFFSET))
           # Update column 4 (Max Tested) and column 5 (Status) in the pipe-separated row
           awk -i inplace -F'|' -v OFS='|' -v ver="${NEW}" '
             NR == '$TARGET' { $4 = " **" ver "** "; $5 = " ⏳ Pending Verification " }
@@ -68,9 +72,11 @@ jobs:
         run: |
           NEW="${{ steps.version.outputs.new_version }}"
           TODAY=$(date +%Y-%m-%d)
-          # Insert new row at marker + 2 (marker → header → after separator)
+          # Parse marker line and embedded OFFSET for the insertion point
-          MARKER=$(grep -n 'TRACKER:VERSION-INSERT' COMPATIBILITY.md | cut -d: -f1)
+          MARKER_INFO=$(grep -n 'TRACKER:VERSION-INSERT' COMPATIBILITY.md)
-          INSERT=$((MARKER + 2))
+          MARKER=$(echo "$MARKER_INFO" | cut -d: -f1)
+          OFFSET=$(echo "$MARKER_INFO" | sed 's/.*OFFSET=\([0-9]*\).*/\1/')
+          INSERT=$((MARKER + OFFSET))
           ROW="| **${NEW}** | ${TODAY} | ⏳ Pending Verification | TBD |"
           sed -i "${INSERT}a ${ROW}" COMPATIBILITY.md
 

COMPATIBILITY.md

@@ -4,7 +4,7 @@ This document tracks the compatibility between **Gitea Mail Templates** releases
 
 ## Quick Reference
 
-<!-- TRACKER:QUICK-REF-MAX -->
+<!-- TRACKER:QUICK-REF-MAX OFFSET=3 -->
 | Template Release | Min Gitea | Max Tested Gitea | Status |
 |-----------------|-----------|-----------------|--------|
 | **v1.0.x**      | **1.25.0** | **1.26.4** | ✅ Active |
@@ -21,7 +21,7 @@ gitea --version
 
 ## Gitea Version History — Mail Template Impact
 
-<!-- TRACKER:VERSION-INSERT -->
+<!-- TRACKER:VERSION-INSERT OFFSET=2 -->
 | Gitea | Release Date | Mail Template Changes | Breaking? |
 |-------|-------------|----------------------|-----------|
 | **1.26.4** | 2026-06-21 | None — hotfix release | No |