task(jat-fq7dx): Unify fonts across open-tasks filter bar and table

All filter controls (search, project dropdown, type dropdown, columns button)
now use the same monospace font stack. Task IDs and epic IDs in context menu
also normalized to the same stack. Search input padding/border-radius aligned
with SearchDropdown triggers.

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

Author: joewinke

ide/src/routes/open-tasks/+page.svelte

@@ -1514,12 +1514,14 @@
 		align-items: center;
 	}
 	.search-input {
-		padding: 0.375rem 0.75rem;
+		padding: 0.25rem 0.5rem;
+		font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
 		font-size: 0.8125rem;
 		background: oklch(0.16 0.01 250);
-		border: 1px solid oklch(0.28 0.02 250);
-		border-radius: 0.375rem;
+		border: 1px solid oklch(0.25 0.02 250);
+		border-radius: 0.5rem;
 		color: oklch(0.90 0.02 250);
+		min-height: 2rem;
 		outline: none;
 		width: 240px;
 		transition: border-color 0.15s;
@@ -1764,7 +1766,7 @@
 	.task-id-btn {
 		background: none;
 		border: none;
-		font-family: monospace;
+		font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
 		font-size: 0.6875rem;
 		color: oklch(0.50 0.02 250);
 		cursor: pointer;
@@ -2223,7 +2225,7 @@
 	}
 	.task-epic-id {
 		font-size: 0.6875rem;
-		font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
+		font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
 		color: oklch(0.60 0.02 250);
 		flex-shrink: 0;
 	}