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/mail-parser.md

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+# mail-parser
+> Parse raw SMTP email messages and extract headers, body, and attachments
+
+**Category:** [[categories/analyze-documents-email-messages|Analyze Documents > Email Messages]] | **Tier:** Rich (FOR610)
+**Docs:** [https://docs.remnux.org/discover-the-tools/analyze+documents/email+messages](https://docs.remnux.org/discover-the-tools/analyze+documents/email+messages)
+
+## Usage
+```bash
+python3 -c "import mailparser; mail = mailparser.parse_from_file('<email.eml>'); print(mail.subject)"
+```
+
+## Workflows
+- [[workflows/email-analysis-workflow|Email & Phishing Analysis]] — Step 1: Header Analysis
+
+## Related Tools
+- [[tools/emldump|emldump.py]] — Parse and analyze EML email message files
+- [[tools/msg-extractor|msg-extractor]] — Extract emails and attachments from Microsoft Outlook MSG fi
+- [[tools/msgconvert|msgconvert]] — Convert MSG files to MBOX files.
+
+#email #parsing #attachments