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/jq.md

@@ -0,0 +1,25 @@
+# jq
+> Command-line JSON processor for extracting and transforming structured data
+
+**Category:** [[categories/utilities|utilities]] | **Tier:** Rich (FOR610)
+
+## Usage
+```bash
+cat report.json | jq '.apis'
+jq -r '.entry' report.json
+```
+
+## Recipes
+- [[recipes/speakeasy-emulation-with-json|Emulate Malware and Extract API Calls]]
+
+## Related Tools
+- [[tools/gunzip|gunzip]] — Decompress gzip-compressed data (often used in multi-stage p
+- [[tools/hexdump|hexdump]] — Display file content in hexadecimal format
+- [[tools/wget|wget]] — Download files from HTTP/HTTPS/FTP servers
+- [[tools/xxd|xxd]] — Create hex dump of a file or reverse a hex dump back to bina
+
+## FOR610
+**Labs:** 1.4
+**Sections:** 1
+
+#json #data-processing