Sync all code from test-playground - complete codebase match

Update to purple theme - sync changes from test-playground

Update README.md

Update README.md

Update README.md

Update README.md

Update gateway_client.py

Update app.py

Keep only Gemini 3 Pro Preview and Gemini 2.5 Pro models

Update Gemini model names to correct IDs: gemini-3-pro-preview and gemini-2.5-pro

Add Gemini 3.0 Pro and Gemini 2.5 Flash models

Update Gemini model names to use available models (gemini-1.5-pro and gemini-2.0-flash-exp)

Fix Google Gemini API chat history handling

Switch Gemini models to use Google API directly instead of AWS Bedrock

Add Gemini 3.0 Pro and Gemini 2.5 Flash models support via AWS Bedrock

Fix: Use inference profile ARN as modelId parameter (not inferenceProfileIdentifier)

Read inference profile ARNs from environment variables (secrets)

Add inference profile ARNs for provisioned throughput Claude models

Revert to :0 suffix for provisioned throughput Claude models

Fix Claude model IDs: remove :0 suffix for on-demand throughput

Add Claude Opus 4 model

Add GPT-5 model and update Claude models to Haiku 4.5 and Sonnet 4.5

Update app.py

Update README.md

Update README.md

Update README.md

Update README.md

Update README with brain emoji, better description, and token authentication instructions

Use huggingface_hub library for token validation - more reliable authentication

Improve HF token validation with better error messages and debugging

Implement HF token authentication - prevent unauthorized memory access

Require username input on HF Spaces - prevent unauthorized memory access

Lock user ID to HF username for security - prevent accessing other users' memories

Add Hugging Face user ID support for automatic persona assignment

Add API key header support for backend authentication

Update Bedrock model IDs to user-provided model identifiers

Update Bedrock model IDs to remove version suffixes

Improve error messages for invalid Bedrock model IDs

Fix Bedrock model IDs for on-demand inference (remove :0 suffix)

Improve AWS credential validation and use AWS_DEFAULT_REGION

Add better error handling for AWS Bedrock credentials

Update gateway_client.py

Update gateway_client.py

Update app.py

Update gateway_client.py

Revert gateway client endpoints

Restore gateway client v1 endpoints

Update app.py

Update app.py

Update app.py