chore: update model configurations and add export settings

Changed model configurations from GitHub Copilot to Azure GPT-5 Mini for both planner and worker. Added new export settings to enable automatic export on run with specified format and limit. Removed outdated requirements-docs.txt file to clean up the repository.

Author: rithulkamesh

devsper.toml

@@ -14,8 +14,8 @@ prefetch_max_age_seconds = 30
 remote_agents = []
 
 [models]
-planner = "github:copilot"
-worker = "github:copilot"
+planner = "azure:gpt-5-mini"
+worker = "azure:gpt-5-mini"
 
 [memory]
 enabled = true
@@ -58,4 +58,9 @@ threshold = 0.01
 
 [[hitl.policies.triggers]]
 type = "critic_score_below"
-threshold = 0.50
+threshold = 0.50
+
+[export]
+auto_export_on_run = true
+format = "docx"  
+limit = 1