Detailed wiki content repair: Hardware

Hardware.md

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+# Hardware
+
+## Classification
+
+Hardware / firmware workspace.
+
+## Structure Signals
+
+- `(root)` (1 files)
+- `src` (1 files)
+
+## File Type Signals
+
+- `.gitignore` (1)
+- `.cpp` (1)
+
+## Build And Dependency Signals
+
+| Signal | Detail |
+|---|---|
+| README files | README.md |
+
+## Project Tree Snapshot
+
+- .gitignore
+- src/main.cpp
+
+## Interpretation
+
+Treat this repo as hardware-affecting until proven otherwise. Add exact board revision, wiring, flashing command, and recovery procedure before release.