repo hygiene, tooling config, v0.2.0

- Untrack src/ocr_pipeline.egg-info from git, delete pyproject.toml~,
  stale run_008/run_009 dirs
- Ruff config moved to [tool.ruff.lint] (silences deprecation warning)
- Pre-commit: bump revs (ruff v0.14.13, mypy v1.18.1, hooks v6.0.0);
  drop redundant isort hook (ruff I already sorts imports)
- mypy: add ignore_missing_imports for optional deps; types-PyYAML in
  dev extras; python_version=3.12 for numpy 2.5 stubs compat; CI step
- Doctor: suppress paddle ccache UserWarning noise during check
- CHANGELOG dated for 0.2.0; README minimal-style rewrite with
  collapsible details sections
- Bump version to 0.2.0

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [0.2.0] - 2026-07-21
 
 ### Added
 - Knowledge graph: `kg_ocr.graph` builds a NetworkX graph (documents, chunks, entities, citations, entity co-occurrence) from pipeline chunk markdown; `kg_ocr.graph.analyzer` provides summaries, top entities/citations, and anomaly detection (low OCR confidence, empty chunks/documents, entity hubs).
@@ -32,6 +32,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `run` results table now shows Skipped count.
 - Run directories are created lazily on first write (no empty `run_NNN`).
 - `kg_ocr` is now a functional knowledge-graph package (graph/export need only networkx); txtai/litellm imports are lazy so the package imports in slim environments.
+- Ruff settings moved to `[tool.ruff.lint]` (silences per-run deprecation warning).
+- Pre-commit: bumped ruff, mypy, pre-commit-hooks; dropped the redundant isort hook.
+- mypy: added `ignore_missing_imports` for optional deps + `types-PyYAML` in dev extras; `python_version = "3.12"` to match numpy 2.5 stubs.
+- README: minimal-style rewrite with collapsible `<details>` sections.
 
 ### Fixed
 - ISBN regex no longer false-positives on years, URLs, job IDs, or dilutions. Now requires an explicit `ISBN` prefix and matches strict 13- or 10-digit structures.
@@ -40,6 +44,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Removed
 - Dead `src/ocr_pipeline/watch.py` shim (shadowed by the `watch/` package).
+- Stub `kg_ocr/cli/` directory (commands now in the main `ocr-pipeline` CLI).
+- Untracked `src/ocr_pipeline.egg-info` from git (still gitignored).
 - Unused core dependencies: `tqdm`, `scikit-image`, `sqlite-utils`, `xxhash`, `python-slugify`, `python-magic`, `legacy-cgi`.
 - Core dependency on `spacy` (moved to `scientific` extra).
 - Core dependency on `paddleocr`/`paddlepaddle` (moved to `paddle` extra).