fix: Respect display.timezone for version tooltip build date

- Include raw timestamp in tooltip data for browser timezone conversion
- Add timestampLabel field to identify which row contains the date
- JavaScript converts build date to browser timezone when timezone: Browser
- Falls back to configured timezone for server-side rendering

1 files changed, 13 insertions, 0 deletions

diff --git a/internal/server/templates/index.html b/internal/server/templates/index.html
index 35f08c1..684819d 100644
--- a/internal/server/templates/index.html
+++ b/internal/server/templates/index.html
@@ -295,6 +295,19 @@
                         });
                     }
                 }
+                // Convert version tooltip build date to browser timezone
+                if (data.timestamp && data.timestampLabel) {
+                    const date = new Date(data.timestamp);
+                    const formatted = date.toLocaleDateString('en-US', { year: 'numeric', month: 'short', day: 'numeric' }) + ' ' +
+                                      date.toLocaleTimeString('en-US', { hour: '2-digit', minute: '2-digit', hour12: false });
+                    if (data.rows) {
+                        data.rows.forEach(function(row) {
+                            if (row.label === data.timestampLabel) {
+                                row.value = formatted;
+                            }
+                        });
+                    }
+                }
                 {{end}}
 
                 let html = '<span class="tooltip-header">' + data.header + '</span>';