docs: improve README project discovery

[FenjuFu]

Summary

• sharpen the English and Chinese project positioning around smart-home command parsing, intent detection, semantic parsing, and slot filling
• add prominent links to the model weights, bilingual benchmark reports, evaluation kit, and output specifications
• document concrete use cases and align the documented v0.1.0 status with the GitHub Release follow-up in release: publish the documented v0.1.0 GitHub release #18

Why

Repository traffic is currently low, while the Chinese benchmark report still shows focused interest. This refresh makes the most useful technical assets easier to discover and gives search and repository visitors clearer language about what Domux does.

This is a documentation signal, not a guarantee of search-engine reindexing. Traffic can be compared again after 14 days alongside the proposed formal release in #18.

Impact

Documentation only; model weights, evaluation behavior, and runtime code are unchanged.

Validation

• git diff --check
• verified every newly linked repository-relative file exists
• verified the PR contains one DCO-signed commit based on the latest main

Related to #18.