Endpoint telemetry, PC Detail rework and a checked backup/restore path

scripts/check-naming-and-style.sh

@@ -35,6 +35,10 @@ EXCLUDES=(
     --exclude-dir=.git
     --exclude-dir=versions
     --exclude-dir=staticdocs
+    # Local, gitignored scratch notes (see .gitignore devnotes/). Not product
+    # source, never committed, and free to hold pasted logs full of em-dashes
+    # and arrows - grep does not consult .gitignore, so exclude it explicitly.
+    --exclude-dir=devnotes
 )
 
 # Root-level gitignored scratch: review writeups and chat handoffs, free to hold