Add property wind turbine concept and update project gallery

source/samford-v009-wind/README.md

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+# v009 wind turbine concept
+
+`add_wind_turbine.py` is an incremental Blender 5.2.1 script. Use the public
+v007 presentation model or the private licensed v008 model as input; do not
+run it on a v009 output. It adds the turbine, matching lightweight geometry,
+a separate overview camera and tour chapter 32. Existing scenes are preserved.
+
+```sh
+blender --background blender/samford-solarpunk-presentation-tour.blend \
+  --python source/samford-v009-wind/add_wind_turbine.py -- \
+  --output blender/samford-solarpunk-wind-tour-v009.blend \
+  --render renders/v009-wind-overview.png
+blender --background blender/samford-solarpunk-wind-tour-v009.blend \
+  --python source/samford-v009-wind/verify_wind_turbine.py
+```
+
+Rendering uses Cycles/Metal on macOS; adapt device selection for other hosts.
+The verification script reopens the saved file and checks turbine geometry,
+viewport copies, retained features, future outlines, material references and
+all 32 caption intervals. It writes a sibling `.verification.json` report.
+
+Private v008 inputs must write exclusively to a private directory. Never
+publish a `.blend` containing the licensed Tesla. The public render uses the
+distributable v007 vehicle. The turbine is original concept geometry, not a
+manufacturer model or engineering design. Read the v009 decision for siting
+and equipment assumptions. No Unreal assets or existing film were rebuilt.