feat: add skip reasons to Discord notifications

API Changes:
- Track skip reason along with package name
- Changed skippedPackages from string[] to Array<{name, reason}>
- Reasons: "package not found", "missing tpmjs field", "invalid tpmjs field"

Workflow Changes:
- Format skipped packages as "package-name - reason"
- Display one package per line in Discord notification

Example Discord output:
📋 Skipped Packages
@scope/package-1 - missing tpmjs field
package-2 - invalid tpmjs field

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.github/workflows/sync-keyword.yml

@@ -59,7 +59,7 @@ jobs:
 
           # Store skipped packages for Discord
           if [ "$skipped" -gt 0 ]; then
-            skippedList=$(echo "$response" | jq -r '.data.skippedPackages[]?' 2>/dev/null | paste -sd ", " - || echo "")
+            skippedList=$(echo "$response" | jq -r '.data.skippedPackages[]? | "\(.name) - \(.reason)"' 2>/dev/null | paste -sd "\n" - || echo "")
             if [ -n "$skippedList" ]; then
               echo "$skippedList" > /tmp/skipped_packages.txt
             fi

apps/web/src/app/api/sync/keyword/route.ts

@@ -30,7 +30,7 @@ export async function POST(request: NextRequest) {
   let skipped = 0;
   let errors = 0;
   const errorMessages: string[] = [];
-  const skippedPackages: string[] = [];
+  const skippedPackages: Array<{ name: string; reason: string }> = [];
 
   try {
     // Search for packages with 'tpmjs-tool' keyword
@@ -48,14 +48,14 @@ export async function POST(request: NextRequest) {
         // Skip if package not found
         if (!pkg) {
           skipped++;
-          skippedPackages.push(result.package.name);
+          skippedPackages.push({ name: result.package.name, reason: 'package not found' });
           continue;
         }
 
         // Check if package has tpmjs field
         if (!pkg.tpmjs) {
           skipped++;
-          skippedPackages.push(pkg.name);
+          skippedPackages.push({ name: pkg.name, reason: 'missing tpmjs field' });
           continue;
         }
 
@@ -63,7 +63,7 @@ export async function POST(request: NextRequest) {
         const validation = validateTpmjsField(pkg.tpmjs);
         if (!validation.valid || !validation.data) {
           skipped++;
-          skippedPackages.push(pkg.name);
+          skippedPackages.push({ name: pkg.name, reason: 'invalid tpmjs field' });
           continue;
         }