fix: Rename 'Scale Groundplane' to 'Scale Generative Platform'

Author: ben-kluger-scale

src/agentex/lib/cli/templates/voice/README.md.j2

@@ -64,7 +64,7 @@ AZURE_OPENAI_ENDPOINT=https://your-resource.openai.azure.com
 AZURE_OPENAI_DEPLOYMENT=your-deployment-name
 LLM_MODEL=gpt-4o  # optional
 
-# OPTION 4: Scale Groundplane (SGP) for Gemini
+# OPTION 4: Scale Generative Platform (SGP) for Gemini
 # For Scale internal use
 SGP_API_KEY=your_sgp_api_key
 SGP_ACCOUNT_ID=your_sgp_account_id

src/agentex/lib/cli/templates/voice/manifest.yaml.j2

@@ -81,7 +81,7 @@ agent:
   #     secret_name: azure-openai-secret
   #     secret_key: deployment
   #
-  # OPTION 3: Scale Groundplane (SGP)
+  # OPTION 3: Scale Generative Platform (SGP)
   #   - env_var_name: SGP_API_KEY
   #     secret_name: sgp-credentials
   #     secret_key: api-key

src/agentex/lib/cli/templates/voice/project/acp.py.j2

@@ -120,7 +120,7 @@ def configure_llm_client():
         return
 
     if SGP_API_KEY and SGP_ACCOUNT_ID:
-        # Scale Groundplane with Gemini
+        # Scale Generative Platform with Gemini
         logger.info(f"Configuring SGP client with account ID: {SGP_ACCOUNT_ID[:8]}...")
         openai_client = AsyncOpenAI(
             api_key=SGP_API_KEY,