Add markdown wiki with 473 pages and zk browser

Generate interlinked wiki from master inventory: 397 tool pages,
15 workflow pages, 27 recipe pages, 33 category pages, plus index.
All pages use [[wiki-links]] for cross-navigation between tools,
workflows, recipes, and categories (1782 links total).

Install zk for interactive browsing with fzf search, tag filtering,
and backlink discovery. Add 'fhelp wiki' command and Makefile target.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

data/generated/wiki/tools/pdf-parser.md

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+# pdf-parser.py
+> Parse PDF structure, locate objects, extract content, and search for strings
+
+**Category:** [[categories/analyze-documents-pdf|Analyze Documents > PDF]] | **Tier:** Rich (FOR610) | **Author:** Didier Stevens
+**Docs:** [https://docs.remnux.org/discover-the-tools/analyze+documents/pdf](https://docs.remnux.org/discover-the-tools/analyze+documents/pdf)
+
+## Usage
+```bash
+pdf-parser.py document.pdf -a
+pdf-parser.py document.pdf -s /URI
+pdf-parser.py document.pdf -k /URI
+pdf-parser.py document.pdf -o 6 -d object6.jpg
+```
+
+## Recipes
+- [[recipes/pdf-object-extraction|Extract Embedded Object from PDF]]
+- [[recipes/pdf-javascript-extraction|Extract JavaScript from PDF]]
+
+## Workflows
+- [[workflows/document-analysis-workflow|Malicious Document Analysis]] — Step 2: Structure Analysis
+- [[workflows/shellcode-analysis-workflow|Shellcode Analysis]] — Step 2: Extraction
+
+## Related Tools
+- [[tools/origamindee|origamindee]] — Parse, modify, generate PDF files.
+- [[tools/pdfid|pdfid.py]] — Scan PDF files for suspicious keywords like /JavaScript, /Op
+- [[tools/pdfresurrect|pdfresurrect]] — Extract and analyze previous versions from PDF files
+- [[tools/pdftk|pdftk]] — Manipulate PDF files — merge, split, flatten, encrypt, and e
+- [[tools/pdftool|pdftool.py]] — Analyze PDF incremental updates
+
+## FOR610
+**Labs:** 3.1
+**Sections:** 1, 3
+
+#pdf #static-analysis #object-extraction #didier-stevens