seo: add repo topics + shields badges + keyword expansion + homepage

Initial SEO pass so both humans on GitHub and package-index crawlers can
find the project by the terms people actually search.

GitHub-side (set via REST API with easyvibecoding PAT, not committed):
  - topics: ai-scientist, autonomous-research, research-paper-generator,
           llm-agent, latex, peer-review, claude-code, agent-skills,
           ml-research, anti-hallucination, arxiv, openai-compatible,
           provider-neutral, python-cli, hermes-sci (15 tags)
  - homepage: https://skills.sh/easyvibecoding/vibe-sci (skills.sh page
           is the natural "official" landing once indexed)
  - has_discussions: true (community Q&A surface)

README changes:
  - Shields.io badges row under the language switcher: License MIT,
    Python 3.12+, CI status (GitHub Actions), skills.sh install, and
    agentskills.io-compliance marker. Each is an inbound-link anchor.
  - First-paragraph rewrite tightens the keyword-dense pitch from a
    passive "Provider-neutral autonomous ML research paper writer"
    opener to an active "An autonomous ML research paper writer —
    give it a topic, get back a compilable LaTeX draft with ideation,
    peer review, and an anti-hallucination numerical audit." Same
    technical content, better for GitHub repo-card snippets and
    Google social-preview description.

pyproject.toml keywords:
  - add ai-scientist / research-paper-generator / arxiv / llm-agent /
    claude-code / agent-skills / provider-neutral / openai-compatible /
    hermes-sci. PyPI currently ignores keywords beyond display but the
    uv / pip search index uses them.

No functional change; tests green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: easyvibecoding

README.md

@@ -9,9 +9,17 @@
   <a href="README.ja.md">日本語</a>
 </p>
 
+<p align="center">
+  <a href="LICENSE"><img alt="License: MIT" src="https://img.shields.io/badge/license-MIT-blue"></a>
+  <a href="https://www.python.org/downloads/"><img alt="Python 3.12+" src="https://img.shields.io/badge/python-3.12%2B-blue"></a>
+  <a href="https://github.com/easyvibecoding/vibe-sci/actions/workflows/tests.yml"><img alt="CI" src="https://github.com/easyvibecoding/vibe-sci/actions/workflows/tests.yml/badge.svg"></a>
+  <a href="https://skills.sh/easyvibecoding/vibe-sci"><img alt="skills.sh" src="https://img.shields.io/badge/install-npx%20skills-black?logo=npm"></a>
+  <a href="https://agentskills.io/specification"><img alt="agentskills.io compliant" src="https://img.shields.io/badge/agentskills.io-compliant-brightgreen"></a>
+</p>
+
 # vibe-sci
 
-Provider-neutral autonomous ML research paper writer — **ideation → LaTeX writeup → peer review → anti-hallucination numerical audit**.
+**An autonomous ML research paper writer** — give it a topic, get back a compilable LaTeX draft with ideation, peer review, and an anti-hallucination numerical audit. Runs against any `claude -p` subprocess or OpenAI-compatible endpoint; no single-vendor lock-in, no Hermes runtime required.
 
 Spun out from [`hermes-sci`](https://github.com/easyvibecoding/hermes-sci) to remove the Hermes-runtime coupling (MiniMax peak-hour throttle, `~/.hermes/config.yaml` backend resolution) and conform to the open [agent skills](https://agentskills.io) standard. Works with any `claude -p` subprocess, an OpenAI-compatible endpoint, or a rule-based fallback — no single vendor required.
 

pyproject.toml

@@ -15,6 +15,15 @@ keywords = [
     "ml-research",
     "anti-hallucination",
     "autonomous-agent",
+    "ai-scientist",
+    "research-paper-generator",
+    "arxiv",
+    "llm-agent",
+    "claude-code",
+    "agent-skills",
+    "provider-neutral",
+    "openai-compatible",
+    "hermes-sci",
     "cli",
     "python",
 ]