- Replaced the large GitHub project stats table in `README.md` with summaries and logos for Pollinations AI and MoneyPrinter V2
- Introduced `STATIC_URL` and `DIST_DIR` constants in new `g4f/constants.py` and used them across multiple files
- Updated `PollinationsAI.py` to support conversation title and follow-up generation using tool calls
- Modified `PollinationsAI.py` and `PollinationsImage.py` to use `STATIC_URL` for the `referrer` header
- Enhanced `PollinationsAI.stream_complete` to yield `ToolCalls`, `TitleGeneration`, and `SuggestedFollowups`
- Added `ToolCalls` handling in `client/__init__.py` to support non-stream and stream modes
- Updated `ChatCompletionDelta` model in `client/stubs.py` to support `ToolCalls`
- Modified `HarProvider` to merge `DEFAULT_HEADERS` into request headers
- Improved `OpenaiChat.py` by adding optional chaining to page evaluation expressions for robustness
- Updated `any_provider.py` to force use of `PollinationsAI` if `tools` key is present in kwargs
- Refactored `is_content` into a reusable function in `providers/response.py` and used in `retry_provider.py`
- Updated `gui/server/website.py` to use `STATIC_URL` and simplify `GPT4FREE_URL` handling
- Removed redundant constants from `version.py` and imported them from `constants.py
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