fix: Remove UTF-8 emojis and Korean comments from workflows (Gitea parser compatibility)

.gitea/workflows/merge-to-main.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Report Tier 1
         if: success()
-        run: echo "✓ Tier 1 (Fast Gates) passed"
+        run: echo " Tier 1 (Fast Gates) passed"
 
   stage-2-critical-gates:
     name: "Stage 2: Critical Gates"
@@ -75,7 +75,7 @@ jobs:
 
       - name: Report Tier 2
         if: success()
-        run: echo "✓ Tier 2 (Critical Gates) passed"
+        run: echo " Tier 2 (Critical Gates) passed"
 
   stage-3-validators-parallel:
     name: "Stage 3: Integration Tests"
@@ -99,7 +99,7 @@ jobs:
 
       - name: Report Tier 3
         if: always()
-        run: echo "✓ Tier 3 (Integration Tests) completed"
+        run: echo " Tier 3 (Integration Tests) completed"
 
   stage-4-build:
     name: "Stage 4: Build and Package"
@@ -162,7 +162,7 @@ jobs:
 
       - name: Report Tier 4
         if: success()
-        run: echo "✓ Tier 4 (Build) succeeded"
+        run: echo " Tier 4 (Build) succeeded"
 
   stage-5-deploy:
     name: "Stage 5: Trigger Deploy Pipeline"