rename web/ to admin/, along with the web-named build and cli identifiers

src/app.zig

@@ -658,10 +658,10 @@ fn serve(r: cli.Runner, args: cli.RunArgs) !u8 {
         .querylog_db = if (web_querylog_db) |*database| database else null,
         .version = version.string,
         .started_unix = std.Io.Clock.real.now(io).toSeconds(),
-        // Ruling 24: `--web-dev` serves from disk with no cache headers;
+        // Ruling 24: `--admin-dev` serves from disk with no cache headers;
         // otherwise the embedded assets answer every non-/api miss.
-        .fallback = if (args.web_dev != null) serveWebDev else static.fallback,
-        .dev_dir = args.web_dev orelse "",
+        .fallback = if (args.admin_dev != null) serveAdminDev else static.fallback,
+        .dev_dir = args.admin_dev orelse "",
         .reload_fn = reloadManager,
     };
 
@@ -799,7 +799,7 @@ fn reloadManager(state: *web_server.WebState, io: std.Io) anyerror!void {
 
 /// Dev-mode asset serving (ruling 24): straight from disk, no cache headers,
 /// so an edit shows up on the next reload.
-fn serveWebDev(
+fn serveAdminDev(
     state: *web_server.WebState,
     io: std.Io,
     request: *http_util.Request,