Add CI check enforcing PR branch targeting rules

Only the dev branch can target main; all other branches must target dev.

Author: SihaoLiu

.claude-plugin/marketplace.json

@@ -8,7 +8,7 @@
       "name": "humanize",
       "source": "./",
       "description": "Humanize - An iterative development plugin that uses Codex to review Claude's work. Creates a feedback loop where Claude implements plans and Codex independently reviews progress, ensuring quality through continuous refinement.",
-      "version": "1.15.0"
+      "version": "1.15.1"
     }
   ]
 }

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "humanize",
   "description": "Humanize - An iterative development plugin that uses Codex to review Claude's work. Creates a feedback loop where Claude implements plans and Codex independently reviews progress, ensuring quality through continuous refinement.",
-  "version": "1.15.0",
+  "version": "1.15.1",
   "author": {
     "name": "humania-org"
   },

.github/workflows/pr-target-check.yml

@@ -0,0 +1,33 @@
+name: PR Target Branch Check
+
+on:
+  pull_request:
+    branches: [main, dev]
+
+jobs:
+  check-target-branch:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Enforce branch targeting rules
+        run: |
+          SOURCE="${{ github.head_ref }}"
+          TARGET="${{ github.base_ref }}"
+
+          echo "Source branch: $SOURCE"
+          echo "Target branch: $TARGET"
+
+          if [ "$TARGET" = "main" ] && [ "$SOURCE" != "dev" ]; then
+            echo ""
+            echo "========================================"
+            echo "FAILED: Only 'dev' branch can target 'main'."
+            echo ""
+            echo "Your branch '$SOURCE' must target 'dev' instead."
+            echo "Please change the base branch of this PR to 'dev'."
+            echo "========================================"
+            exit 1
+          fi
+
+          echo ""
+          echo "========================================"
+          echo "PASSED: Branch targeting rule satisfied."
+          echo "========================================"

README.md

@@ -1,6 +1,6 @@
 # Humanize
 
-**Current Version: 1.15.0**
+**Current Version: 1.15.1**
 
 > Derived from the [GAAC (GitHub-as-a-Context)](https://github.com/SihaoLiu/gaac) project.