Sprint 0+1: Package restructure, source tiers, verdicts, multi-variant editions

- New oracle/ package (11 modules) with unified CLI (python -m oracle)
- Source tiers: Tier 1 (arxiv/github/hf), Tier 2 (rss/hn), Tier 3 (reddit)
- Composite verdicts: PUBLISH/WATCH/ARCHIVE/DROP based on signal score + age
- Content-hash dedup: SHA-256[:16] normalized, atomic at insert time
- Multi-variant editions: 4 YAML configs (default/research/devops/brief)
- Variant engine: filter → rank → render (HTML + JSON, themed)
- Per-adapter timeout (10s) + threading fallback
- Consolidated 12 root scripts → thin wrappers + oracle/ package
- Archived stale scripts (_engagement, _live_compare, reddit_proof)
- Updated .gitignore, README.md, schema.sql

oracle/__init__.py

@@ -0,0 +1,21 @@
+"""Athena — AI Research Oracle.
+
+Unified intelligence pipeline for AI news aggregation, scoring, and rendering.
+
+Architecture:
+  oracle/       - Core package (this directory)
+    adapters/   - Source adapters (GitHub, arXiv, Reddit, HN, HF, RSS)
+    athena/     - Scoring and classification logic
+    cli.py      - CLI entry point (subcommands)
+    db.py       - Database operations and schema
+    render.py   - Static site rendering
+    scoring.py  - Athena scoring engine
+    clickability.py  - Clickability index and decay
+    summarize.py     - Rule-based summarization
+    recency.py       - Recency guard and freshness filtering
+    themes.py        - Theme-based trend tracking
+    archive.py       - Soft-cap archival
+    config.py        - Configuration and constants
+"""
+
+__version__ = "1.0.0"