diff --git a/.gitea/workflows/auto_backup_schedule.yml b/.gitea/workflows/auto_backup_schedule.yml
index 6bfc502..25f4fbd 100644
--- a/.gitea/workflows/auto_backup_schedule.yml
+++ b/.gitea/workflows/auto_backup_schedule.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   daily-backup:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Daily Backup
 
     steps:
@@ -41,7 +41,7 @@ jobs:
           ls -lh backups/ | tail -5
 
   weekly-full-backup:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Weekly Full Backup
 
     # 매주 월요일 1:00 UTC
@@ -85,7 +85,7 @@ jobs:
           df -h | grep -E "Filesystem|data"
 
   backup-health-check:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Backup Health Check
 
     # 매일 12:00 UTC
@@ -127,7 +127,7 @@ jobs:
           du -sh backups/ | awk '{print "Total size: " $1}'
 
   test-recovery:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: Monthly Recovery Test
 
     # 매월 1일 2:00 UTC
diff --git a/.gitea/workflows/backup.yml b/.gitea/workflows/backup.yml
index 6fee1af..8a51ed8 100644
--- a/.gitea/workflows/backup.yml
+++ b/.gitea/workflows/backup.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   backup:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Run backup
diff --git a/.gitea/workflows/calibration_backlog.yml b/.gitea/workflows/calibration_backlog.yml
index 8c06377..be4fd24 100644
--- a/.gitea/workflows/calibration_backlog.yml
+++ b/.gitea/workflows/calibration_backlog.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   build-calibration-backlog:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code
diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index b1f00e4..beb69e0 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -20,7 +20,7 @@ on:
 
 jobs:
   validate-core:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code
@@ -154,7 +154,7 @@ jobs:
       run: python3 tools/validate_snapshot_admin_workflow_v1.py
 
   validate-ui-and-storage:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     needs: validate-core
     if: github.event_name != 'push'
 
diff --git a/.gitea/workflows/kis_data_collection.yml b/.gitea/workflows/kis_data_collection.yml
index 71b06c1..3912e7b 100644
--- a/.gitea/workflows/kis_data_collection.yml
+++ b/.gitea/workflows/kis_data_collection.yml
@@ -31,7 +31,7 @@ on:
 jobs:
   validate-kis-config-smoke:
     if: github.event_name == 'workflow_dispatch'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
     - name: Checkout Code
       run: |
@@ -90,7 +90,7 @@ jobs:
 
   collect-kis-data-live:
     if: github.event_name == 'schedule'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code
diff --git a/.gitea/workflows/qualitative_sell_strategy.yml b/.gitea/workflows/qualitative_sell_strategy.yml
index 8625287..bc962ca 100644
--- a/.gitea/workflows/qualitative_sell_strategy.yml
+++ b/.gitea/workflows/qualitative_sell_strategy.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   evaluate-qualitative-sell:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout Code
diff --git a/.gitea/workflows/snapshot_admin.yml b/.gitea/workflows/snapshot_admin.yml
index 45ce4d3..cded06f 100644
--- a/.gitea/workflows/snapshot_admin.yml
+++ b/.gitea/workflows/snapshot_admin.yml
@@ -17,7 +17,7 @@ jobs:
   # Push-only smoke gate: no deployment, no web UI smoke, no long-running side effects.
   validate-snapshot-admin-smoke:
     if: github.event_name == 'push'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
         run: |
@@ -53,7 +53,7 @@ jobs:
   # Manual dispatch gate: full workflow + web UI validation only.
   validate-snapshot-admin-full:
     if: github.event_name == 'workflow_dispatch'
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
         run: |
diff --git a/.gitea/workflows/snapshot_admin_deploy.yml b/.gitea/workflows/snapshot_admin_deploy.yml
index 9c8af23..9722baf 100644
--- a/.gitea/workflows/snapshot_admin_deploy.yml
+++ b/.gitea/workflows/snapshot_admin_deploy.yml
@@ -9,7 +9,7 @@ concurrency:
 
 jobs:
   deploy-snapshot-admin:
-    runs-on: [self-hosted, snapshot-admin-host]
+    runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
       - name: Checkout Code
diff --git a/.gitea/workflows/wbs_9_3_null_policy_ci_gate.yml b/.gitea/workflows/wbs_9_3_null_policy_ci_gate.yml
index 2efd675..d365baf 100644
--- a/.gitea/workflows/wbs_9_3_null_policy_ci_gate.yml
+++ b/.gitea/workflows/wbs_9_3_null_policy_ci_gate.yml
@@ -14,7 +14,7 @@ on:
 
 jobs:
   null-policy-validation:
-    runs-on: act-runner
+    runs-on: ubuntu-latest
     name: NULL Policy Validation
 
     steps: