[WIP] Feat: experimental agent loop

.changeset/two-bikes-kneel.md

@@ -0,0 +1,9 @@
+---
+'@tanstack/ai-anthropic': minor
+'@tanstack/ai-gemini': minor
+'@tanstack/ai-ollama': minor
+'@tanstack/ai-openai': minor
+'@tanstack/ai': minor
+---
+
+Split up adapters for better tree shaking into separate functionalities