docs(readme): remove star call-to-action and update development warning

Remove the star call-to-action message and update the early development
warning by removing the ⭐ emoji prefix.

docs(architecture): enhance diagram with comprehensive system design

Update architecture.svg to include:
- Expand canvas size from 720px to 800px height
- Add detailed configuration section with TOML settings
- Include LLM executor with throttle control and retry mechanisms
- Add query decomposition and pilot guidance components
- Implement unified metrics hub with LLM, pilot, retrieval, and
feedback statistics
- Add feedback learning loop from user feedback to decision adjustment
- Include design philosophy section highlighting zero vectors,
algorithm+LLM hybrid approach, feedback learning, and multi-turn
support
- Replace keyword/semantic/LLM strategies with keyword-only, BM25,
and hybrid scoring strategies
- Update workspace to include feedback store component

Author: zTgx

README.md

@@ -13,9 +13,7 @@
 
 Ultra performant document intelligence engine for RAG, with written in **Rust**. Zero vector database, zero embedding model — just LLM-powered tree navigation. Incremental indexing and multi-format support out-of-box.
 
-⭐ **Drop a star to help us grow!**
-
-**⚠️ Early Development**: This project is in active development. The API and features are likely to evolve, and breaking changes may occur.
+**Early Development**: This project is in active development. The API and features are likely to evolve, and breaking changes may occur.
 
 
 ## Why Vectorless?
@@ -134,19 +132,12 @@ async fn main() -> vectorless::Result<()> {
 
 ## Examples
 
-See the [examples/](examples/) directory for complete working examples
-
+See the [examples/](examples/) directory for complete working examples.
 
 ## Architecture
-
-### Pilot Architecture
-
-![Pilot Architecture](docs/design/pilot-architecture.svg)
-
-### System Overview
-
 ![Architecture](docs/design/architecture.svg)
 
+
 ## Contributing
 
 Contributions are welcome!