chore(release): 0.0.3

Squash-merge lib-standardisation: adopt repo standards across packaging,
tooling, docs, and CI.

- standardize pyproject.toml (canonical packaging, lint config, extras, GSDFC pydoclint)
- add py.typed marker, modernize type hints and Google-style docstrings
- nest generated docs under docs/lib and docs/mcp; add hand-written wiki
- adopt standard Type A PyPI CI pipeline (tag==version guard + quality gate)
- promote generated CHANGELOG.md; bump version to 0.0.3

docs/mcp/nav.json

@@ -0,0 +1,90 @@
+[
+  {
+    "module": "omniread",
+    "resource": "docs://modules/omniread"
+  },
+  {
+    "module": "omniread.core",
+    "resource": "docs://modules/omniread.core"
+  },
+  {
+    "module": "omniread.core.content",
+    "resource": "docs://modules/omniread.core.content"
+  },
+  {
+    "module": "omniread.core.parser",
+    "resource": "docs://modules/omniread.core.parser"
+  },
+  {
+    "module": "omniread.core.scraper",
+    "resource": "docs://modules/omniread.core.scraper"
+  },
+  {
+    "module": "omniread.csv",
+    "resource": "docs://modules/omniread.csv"
+  },
+  {
+    "module": "omniread.csv.client",
+    "resource": "docs://modules/omniread.csv.client"
+  },
+  {
+    "module": "omniread.csv.parser",
+    "resource": "docs://modules/omniread.csv.parser"
+  },
+  {
+    "module": "omniread.csv.parser_base",
+    "resource": "docs://modules/omniread.csv.parser_base"
+  },
+  {
+    "module": "omniread.csv.scraper",
+    "resource": "docs://modules/omniread.csv.scraper"
+  },
+  {
+    "module": "omniread.html",
+    "resource": "docs://modules/omniread.html"
+  },
+  {
+    "module": "omniread.html.parser",
+    "resource": "docs://modules/omniread.html.parser"
+  },
+  {
+    "module": "omniread.html.scraper",
+    "resource": "docs://modules/omniread.html.scraper"
+  },
+  {
+    "module": "omniread.pdf",
+    "resource": "docs://modules/omniread.pdf"
+  },
+  {
+    "module": "omniread.pdf.client",
+    "resource": "docs://modules/omniread.pdf.client"
+  },
+  {
+    "module": "omniread.pdf.parser",
+    "resource": "docs://modules/omniread.pdf.parser"
+  },
+  {
+    "module": "omniread.pdf.scraper",
+    "resource": "docs://modules/omniread.pdf.scraper"
+  },
+  {
+    "module": "omniread.xlsx",
+    "resource": "docs://modules/omniread.xlsx"
+  },
+  {
+    "module": "omniread.xlsx.client",
+    "resource": "docs://modules/omniread.xlsx.client"
+  },
+  {
+    "module": "omniread.xlsx.parser",
+    "resource": "docs://modules/omniread.xlsx.parser"
+  },
+  {
+    "module": "omniread.xlsx.parser_base",
+    "resource": "docs://modules/omniread.xlsx.parser_base"
+  },
+  {
+    "module": "omniread.xlsx.scraper",
+    "resource": "docs://modules/omniread.xlsx.scraper"
+  }
+]