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/brxor.md

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+# brxor.py
+> Brute-force XOR key detection for single-byte XOR-encoded strings
+
+**Category:** [[categories/examine-static-properties-deobfuscation|Examine Static Properties > Deobfuscation]] | **Tier:** Rich (FOR610)
+**Docs:** [https://docs.remnux.org/discover-the-tools/examine+static+properties/deobfuscation](https://docs.remnux.org/discover-the-tools/examine+static+properties/deobfuscation)
+
+## Usage
+```bash
+brxor.py specimen.dll
+```
+
+## Recipes
+- [[recipes/xor-key-brute-force|Brute-Force XOR Key]]
+
+## Workflows
+- [[workflows/string-deobfuscation-workflow|String & Data Deobfuscation]] — Step 3: Single-Byte XOR Recovery
+
+## Related Tools
+- [[tools/1768|1768.py]] — Parse Cobalt Strike beacon configuration from shellcode or m
+- [[tools/balbuzard|balbuzard]] — Extract and deobfuscate patterns from suspicious files.
+- [[tools/base64dump|base64dump.py]] — Extract and decode Base64-encoded strings from files
+- [[tools/chepy|chepy]] — Decode and otherwise analyze data using this command-line to
+- [[tools/cobalt-strike-configuration-extractor-csce-and-parser|Cobalt Strike Configuration Extractor (CSCE) and Parser]] — Analyze Cobalt Strike beacons.
+
+## FOR610
+**Labs:** 5.2
+**Sections:** 5
+
+#xor #brute-force #deobfuscation