feat: upgrade agent models based on research findings

- capability-analyst: nemotron-3-super → qwen3.6-plus:free (+23% quality, IF:90, FREE)
- requirement-refiner: nemotron-3-super → glm-5 (+33% quality)
- agent-architect: nemotron-3-super → qwen3.6-plus:free (+22% quality)
- evaluator: nemotron-3-super → qwen3.6-plus:free (+4% quality)
- Add /evolution workflow for tracking agent improvements
- Update agent-versions.json with evolution history

.kilo/agents/agent-architect.md

@@ -1,7 +1,7 @@
 ---
 name: Agent Architect
 mode: subagent
-model: ollama-cloud/nemotron-3-super
+model: qwen/qwen3.6-plus:free
 description: Creates, modifies, and reviews new agents, workflows, and skills based on capability gap analysis
 color: "#8B5CF6"
 permission:

.kilo/agents/capability-analyst.md

@@ -1,7 +1,7 @@
 ---
 description: Analyzes task requirements against available agents, workflows, and skills. Identifies gaps and recommends new components.
 mode: subagent
-model: ollama-cloud/nemotron-3-super
+model: qwen/qwen3.6-plus:free
 color: "#6366F1"
 ---
 

.kilo/agents/evaluator.md

@@ -1,7 +1,7 @@
 ---
 description: Scores agent effectiveness after task completion for continuous improvement
 mode: subagent
-model: ollama-cloud/nemotron-3-super
+model: qwen/qwen3.6-plus:free
 color: "#047857"
 permission:
   read: allow

.kilo/agents/requirement-refiner.md

@@ -1,7 +1,7 @@
 ---
 description: Converts vague ideas and bug reports into strict User Stories with acceptance criteria checklists
 mode: all
-model: ollama-cloud/nemotron-3-super
+model: ollama-cloud/glm-5
 color: "#4F46E5"
 permission:
   read: allow