fix(copilot-chat): Update models

Author: ruicsh

.env.template

@@ -1,9 +1,9 @@
 BLINK_FUZZY_IMPLEMENTATION=
 COPILOT_DISABLE_SUGGESTIONS=false
-COPILOT_MODEL_ARCHITECT=o1 # reasoning, small context
-COPILOT_MODEL_CHEAP=gpt-4.1 # quick/low-cost tasks
-COPILOT_MODEL_CODEGEN=claude-3.7-sonnet # generation, big context
-COPILOT_MODEL_REASON=gpt-4o # reasoning, big context
+COPILOT_MODEL_ARCHITECT=gpt-5 # reasoning, small context
+COPILOT_MODEL_CHEAP=gemini-2.0-flash-001 # quick/low-cost tasks
+COPILOT_MODEL_CODEGEN=claude-sonnet-4 # generation, big context
+COPILOT_MODEL_REASON=gpt-5 # reasoning, big context
 COPILOT_PROXY=
 FORMAT_ON_SAVE=true
 IS_WORK=false