rename folder feature added. 4s edit wait, 6s cooldown adjust

src/slug.ts

@@ -23,9 +23,10 @@
 // in isolation. The transform is always one-way (H1 -> filename), which lets us
 // freely drop characters without worrying about a reverse mapping.
 
-// A TIMEID is a leading run of 12 to 18 digits, ending at a dash or end-of-name.
+// A TIMEID is the leading run of 12 to 18 digits, ending at any non-digit or
+// end-of-name (so "202607290947 test" and "202607290947-slug" both qualify).
 // 12-18 because collision-avoidance may append extra digits to a 14-digit stamp.
-const TIMEID_RE = /^(\d{12,18})(?=-|$)/;
+const TIMEID_RE = /^(\d{12,18})(?=\D|$)/;
 
 // Return the immutable id prefix, or null if this file is not a zettel.
 export function extractTimeId(basename: string): string | null {
@@ -33,13 +34,13 @@ export function extractTimeId(basename: string): string | null {
 	return m?.[1] ?? null;
 }
 
-// H1 text -> kebab slug. sanifize as inspiration, deliberately simpler.
-export function generateSlug(heading: string): string {
-	return heading
+// text (an H1 or a folder name) -> ASCII, case-preserving, dash-separated slug.
+// Shared by the file-rename sync and the folder-slug menu.
+export function generateSlug(text: string): string {
+	return text
 		.normalize('NFKD') // split accented letters into base + combining mark
 		.replace(/[̀-ͯ]/g, '') // strip the combining marks (c-cedilla -> c)
-		.toLowerCase()
-		.replace(/[^a-z0-9]+/g, '-') // any run of non-alphanumerics -> one dash
+		.replace(/[^a-zA-Z0-9]+/g, '-') // non-alphanumerics -> one dash (case kept)
 		.replace(/^-+|-+$/g, ''); // trim leading/trailing dashes
 }