doctor: build dependencies (JDK with the version the project needs, Android SDK command-line tools, CocoaPods, Node, Bun, bundletool), too-old status, doctor --install <tool> --yes runs the package-manager command (never sudo); desktop Dependencies shows too old; gen-flags works on Windows paths

cli/data/flags.json

@@ -459,7 +459,8 @@
    "xdg-mime"
   ],
   "doctor": [
-   "dir"
+   "dir",
+   "install"
   ],
   "edit": [
    "ops",
@@ -1019,6 +1020,7 @@
    "identity",
    "include-drafts",
    "include-high-income",
+   "install",
    "internal",
    "internal-only",
    "invite",
@@ -1370,7 +1372,8 @@
    "storebound desktop --download      only save the installer for this system into ~/Downloads (checked as above)"
   ],
   "doctor": [
-   "storebound doctor [--dir .] [--json]"
+   "storebound doctor [--dir .] [--json]",
+   "storebound doctor --install <tool> [--yes]   runs this OS's install command for one tool (winget / brew / apt);"
   ],
   "edit": [
    "storebound edit --ops '<json>' [--dry] [--json]",