fix: correct OpenRouter model paths across all files

Fixed format from 'qwen/...' to 'openrouter/qwen/...' for:
- product-owner.md
- prompt-optimizer.md
- workflow-architect.md
- status.md, blog.md, booking.md, commerce.md
- kilo.jsonc (default model + ask agent)
- agent-frontmatter-validation.md
- agent-versions.json (recommendations and history)

agent-evolution/data/agent-versions.json

@@ -427,7 +427,7 @@
         "capabilities": ["prompt_analysis", "prompt_improvement", "failure_pattern_detection"],
         "recommendations": [
           {
-            "target": "openrouter/qwen3.6-plus:free",
+            "target": "openrouter/qwen/qwen3.6-plus:free",
             "reason": "Terminal-Bench 61.6% > Nemotron, always-on CoT",
             "priority": "high"
           }
@@ -438,7 +438,7 @@
           "date": "2026-04-05T05:21:00Z",
           "commit": "caf77f53c8",
           "type": "model_change",
-          "from": "openrouter/qwen3.6-plus:free",
+          "from": "openrouter/qwen/qwen3.6-plus:free",
           "to": "ollama-cloud/nemotron-3-super",
           "reason": "Research recommendation applied",
           "source": "git"
@@ -482,7 +482,7 @@
           "date": "2026-04-05T05:21:00Z",
           "commit": "caf77f53c8",
           "type": "model_change",
-          "from": "openrouter/qwen3.6-plus:free",
+          "from": "openrouter/qwen/qwen3.6-plus:free",
           "to": "ollama-cloud/glm-5",
           "reason": "GLM-5 good for management tasks",
           "source": "git"
@@ -526,7 +526,7 @@
           "date": "2026-04-05T05:21:00Z",
           "commit": "caf77f53c8",
           "type": "model_change",
-          "from": "openrouter/qwen3.6-plus:free",
+          "from": "openrouter/qwen/qwen3.6-plus:free",
           "to": "ollama-cloud/nemotron-3-nano:30b",
           "reason": "Nano efficient for lightweight validation tasks",
           "source": "git"