fix(spec_helper): Update OLLAMA_API_BASE default value for better local development support

Closes #137

Author: crmne

spec/spec_helper.rb

@@ -47,7 +47,7 @@
   config.filter_sensitive_data('<GEMINI_API_KEY>') { ENV.fetch('GEMINI_API_KEY', nil) }
   config.filter_sensitive_data('<DEEPSEEK_API_KEY>') { ENV.fetch('DEEPSEEK_API_KEY', nil) }
   config.filter_sensitive_data('<OPENROUTER_API_KEY>') { ENV.fetch('OPENROUTER_API_KEY', nil) }
-  config.filter_sensitive_data('<OLLAMA_API_BASE>') { ENV.fetch('OLLAMA_API_BASE', nil) }
+  config.filter_sensitive_data('<OLLAMA_API_BASE>') { ENV.fetch('OLLAMA_API_BASE', 'http://localhost:11434/v1') }
 
   config.filter_sensitive_data('<AWS_ACCESS_KEY_ID>') { ENV.fetch('AWS_ACCESS_KEY_ID', nil) }
   config.filter_sensitive_data('<AWS_SECRET_ACCESS_KEY>') { ENV.fetch('AWS_SECRET_ACCESS_KEY', nil) }