selection: start the found count afresh for every command

The count was keyed on the gathering command's address, so a command
boxed where the previous one was (MOVE right after MOVE) inherited its
selection and reported its first pick as a duplicate. Drop the report
whenever no command is running.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/app/command_driver/utilities.rs

@@ -574,7 +574,7 @@ impl OpenCADStudio {
         StepInput::SelectionComplete(kept)
     }
 
-/// What one selection step picked, as the reference words it: `N found`
+    /// What one selection step picked, as the reference words it: `N found`
     /// for the first step, `N found, M total`, `N found (D duplicate), M
     /// total` when some were chosen already, `N found, R removed, M total` in
     /// remove mode. Returns the command's key while it gathers.

src/app/update/mod.rs

@@ -613,6 +613,12 @@ impl OpenCADStudio {
         // open, template new); announce it on the same boundary (API v9).
         #[cfg(not(target_arch = "wasm32"))]
         self.notify_plugins_document_opened();
+        // The `N found, M total` count belongs to the command that gathered
+        // it; the next command, even one boxed at the same address, starts
+        // from nothing.
+        if self.tabs[self.active_tab].active_cmd.is_none() {
+            self.selection_report = None;
+        }
         // OTRACK acquires tracking points only while a command or grip drag is
         // running; drop them once neither is active so the temporary tracking
         // points / vectors disappear when the command ends (issue #64). A grip