docs: add wiki, complete lib nav, and rebuild mcp artifacts

- Add hand-written wiki (index, overview, how-to, extending, dev) with
  MkDocs config following the platform anatomy
- Complete the library nav by registering the csv and xlsx groups in
  docforge.nav.yml and docs/mkdocs.lib.yml
- Regenerate lib/MCP outputs with the rebuilt nav

docs/wiki/index.md

@@ -0,0 +1,64 @@
+# 📄 OmniRead — Format-Agnostic Content Acquisition and Parsing
+
+`OmniRead` is a composable content ingestion framework with pluggable scrapers
+and parsers for HTML, PDF, CSV, and XLSX. It cleanly separates fetching
+(I/O) from interpretation (parsing) through a canonical `Content` exchange
+model, giving each format its own scraper and parser while sharing one
+uniform pipeline.
+
+> **Doc model:** this wiki is written for humans — how‑to guides, examples,
+> and extension recipes. The authoritative API contracts live in the code
+> (GSDFC docstrings) and the machine‑readable bundle under `docs/mcp/`.
+
+---
+
+## 🚀 Key Features
+
+* 🧱 **Content/Scraper/Parser architecture** — fetch and interpret in
+  independent, testable layers
+* 📄 **Canonical `Content` model** — raw bytes + metadata passed between all
+  layers via one dataclass
+* 🌐 **HTML** — HTTP-based scraper with httpx; DOM parsing via BeautifulSoup
+* 📕 **PDF** — client + scraper for raw PDF bytes; user-defined parsers
+* 📊 **CSV** — standard-library CSV parser over `rows()` iterator
+* 📑 **XLSX** — openpyxl-backed spreadsheet parser with sheet selection,
+  empty-row control, and ISO date conversion
+
+---
+
+## ⚡ Quick Start
+
+```python
+from omniread import HTMLScraper, HTMLParser
+
+class TitleParser(HTMLParser[str]):
+    def parse(self) -> str:
+        return self._soup.title.string
+
+content = HTMLScraper().fetch("https://example.com")
+title = TitleParser(content).parse()
+assert title == "Example Domain"
+```
+
+---
+
+## 📁 Documentation Structure
+
+| Section | What you'll find |
+|---|---|
+| [Overview](01_overview.md) | The three-layer architecture and the `Content` model |
+| [How to Use](02_how_to_use.md) | Ready-to-run examples for HTML, PDF, CSV, and XLSX |
+| [Extending OmniRead](03_extending.md) | Subclassing scrapers, parsers, and clients |
+| [Development](04_development.md) | Setup, tests, and regenerating docs |
+
+---
+
+## 🔗 Related Resources
+
+* **Source Code:** [Gitea Repository](https://git.aetoskia.com/aetos/omniread)
+* **Internal PyPI:** [pip.aetoskia.com/simple/omniread](https://pip.aetoskia.com/simple/omniread)
+* **CI:** Builds and publishes tagged releases, gated on black / ruff / mypy / pytest.
+
+---
+
+© Aetoskia Internal — `omniread` 0.0.1