Fix the Git Service when running on Ollama

Signed-off-by: Ed Snible <snible@us.ibm.com>

Author: esnible

a2a/git_issue_agent/.env.ollama

@@ -5,12 +5,12 @@
 #   ollama pull ibm/granite4:latest
 
 # LLM configuration
-TASK_MODEL_ID=ollama_chat/ibm/granite4:latest
+TASK_MODEL_ID=gpt-oss:latest
 # Ollama API base URL. Required by litellm (used by crewai >=1.10).
-# For Docker Desktop / Kind: http://host.docker.internal:11434
-# For in-cluster Ollama:     http://ollama.ollama.svc:11434
-LLM_API_BASE=http://host.docker.internal:11434
-OLLAMA_API_BASE=http://host.docker.internal:11434
+# For Docker Desktop / Kind: http://host.docker.internal:11434/v1
+# For in-cluster Ollama:     http://ollama.ollama.svc:11434/v1
+LLM_API_BASE=http://host.docker.internal:11434/v1
+OLLAMA_API_BASE=http://host.docker.internal:11434/v1
 LLM_API_KEY=ollama
 MODEL_TEMPERATURE=0
 
@@ -19,4 +19,5 @@ SERVICE_PORT=8000
 LOG_LEVEL=DEBUG
 
 # MCP Tool endpoint
-MCP_URL=http://github-tool-mcp:9090/mcp
+# Port 8000 is the default for Kagenti Tools
+MCP_URL=http://github-tool-mcp:8000/mcp