fix: show midnight "0" hour label - was clipped above scroll area

The first time-slot label's translateY(-50%) pushed it above the container
top edge. Added padding-top to time-column-slots and time-slots-container,
and disabled the translate on the first label. Reverted 00→0.

v1.75.5

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "my-weekly-todo-list",
-  "version": "1.75.4",
+  "version": "1.75.5",
   "description": "A web-based weekly task management application that organizes to-dos and calendar events in a single, intuitive weekly view",
   "main": "index.js",
   "scripts": {

src/app/globals.css

@@ -2863,7 +2863,12 @@ h3 {
   flex: 1;
   overflow-y: visible; /* Unify with parent scroll */
   position: relative;
-  padding-top: 0; /* Flush with header */
+  padding-top: 0.5em; /* Space for first hour label translateY */
+}
+
+/* First hour label: don't translate above container edge */
+.time-column-slots .time-slot-label:first-child span {
+  transform: none;
 }
 
 
@@ -2913,7 +2918,7 @@ h3 {
   flex: 1;
   overflow: visible; /* Changed from auto to unify scroll */
   overflow-x: visible;
-  padding-top: 0; /* Flush with header */
+  padding-top: 0.5em; /* Match time-column-slots for alignment */
 }
 
 .time-slot {

src/components/WeeklyView.tsx

@@ -1440,7 +1440,7 @@ function formatHour(hour: number, minutes: number = 0, format: "short" | "full"
     }
     // 24h format
     if (format === "short" && minutes === 0) {
-        return hour === 0 ? "00" : `${hour}`;
+        return `${hour}`;
     }
     return `${hour.toString().padStart(2, "0")}:${minutes.toString().padStart(2, "0")}`;
 }