Reverse engineering tools per mode; raw firmware in decompile; skill

- AgentConfig.reverse_tools (Settings -> Agents & commands) gives any mode
  binary_info and decompile; the clean-room check of the tools applies to
  craft only (ToolCtx.clean_room = clean room && craft).
- decompile: optional processor (Ghidra language id) and base_address for raw
  images (BinaryLoader); separate cache per processor/address.
- Skill "reverse-engineering": identify, convert HEX, processor table for
  common chips, decompile, explore, notes in analysis/.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -3,6 +3,17 @@
 All notable changes to CodeCraft. Versions follow [Semantic Versioning](https://semver.org/);
 until 1.0, minor versions may contain breaking changes.
 
+## [Unreleased]
+
+### Added
+
+- **Reverse engineering outside craft:** *Settings → Agents & commands* can give any mode the
+  `binary_info` and `decompile` (Ghidra) tools; the clean-room rule stays a craft rule.
+- **Raw firmware in `decompile`:** optional `processor` (Ghidra language id, e.g.
+  `ARM:LE:32:Cortex`) and `base_address` for images without a file format (.bin, converted .hex).
+- **Skill "reverse-engineering":** how to identify, decompile and explore programs and firmware
+  (processor table for common chips, HEX conversion, notes in `analysis/`).
+
 ## [v202611-00019] – 2026-11-11
 
 ### Added