Change smoke-* workflows to run daily on weekdays only

.github/workflows/smoke-claude.md

@@ -1,7 +1,7 @@
 ---
-description: Smoke test workflow that validates Claude engine functionality by reviewing recent PRs twice daily
+description: Smoke test workflow that validates Claude engine functionality by reviewing recent PRs daily on weekdays
 on: 
-  schedule: every 12h
+  schedule: daily on weekdays
   workflow_dispatch:
   pull_request:
     types: [labeled]

.github/workflows/smoke-codex.md

@@ -1,7 +1,7 @@
 ---
-description: Smoke test workflow that validates Codex engine functionality by reviewing recent PRs twice daily
+description: Smoke test workflow that validates Codex engine functionality by reviewing recent PRs daily on weekdays
 on: 
-  schedule: every 12h
+  schedule: daily on weekdays
   workflow_dispatch:
   pull_request:
     types: [labeled]

.github/workflows/smoke-copilot.md

@@ -1,7 +1,7 @@
 ---
 description: Smoke Copilot
 on: 
-  schedule: every 12h
+  schedule: daily on weekdays
   workflow_dispatch:
   pull_request:
     types: [labeled]

.github/workflows/smoke-opencode.md

@@ -1,7 +1,7 @@
 ---
-description: Smoke test workflow that validates OpenCode custom engine functionality daily
+description: Smoke test workflow that validates OpenCode custom engine functionality daily on weekdays
 on: 
-  schedule: daily
+  schedule: daily on weekdays
   workflow_dispatch:
   pull_request:
     types: [labeled]

.github/workflows/smoke-test-tools.md

@@ -2,7 +2,7 @@
 description: Smoke test to validate common development tools are available in the agent container
 on: 
   workflow_dispatch:
-  schedule: every 12h
+  schedule: daily on weekdays
   pull_request:
     types: [labeled]
     names: ["smoke"]