Add person field, full-text search, and search highlighting

- New 'Who are you praying for?' field on prayer cards (optional)
- Person name shown in primary color above the request text
- Search bar filters across person, request, answer, and tags simultaneously
- Search terms highlighted in yellow/amber in results
- Tag filter and search combine with status filter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DReRqHxSYuVfCzTzQGD9hZ

src/App.css

@@ -181,13 +181,89 @@ body {
   background: var(--surface-hover);
 }
 
+/* Person field */
+.person-input {
+  width: 100%;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  padding: .5rem .75rem;
+  background: var(--bg);
+  color: var(--text);
+  font-family: inherit;
+  font-size: .95rem;
+  outline: none;
+  margin-bottom: .6rem;
+  transition: border-color .15s;
+}
+
+.person-input:focus { border-color: var(--primary); }
+.person-input::placeholder { color: var(--text-muted); }
+
+/* Toolbar: filter + search on one row */
+.toolbar {
+  display: flex;
+  gap: .75rem;
+  align-items: center;
+  margin-bottom: 1rem;
+  flex-wrap: wrap;
+}
+
 /* Filter bar */
 .filter-bar {
   display: flex;
-  gap: 0.5rem;
-  margin-bottom: 1rem;
+  gap: .5rem;
 }
 
+/* Search */
+.search-wrap {
+  position: relative;
+  flex: 1;
+  min-width: 160px;
+}
+
+.search-icon {
+  position: absolute;
+  left: .6rem;
+  top: 50%;
+  transform: translateY(-50%);
+  color: var(--text-muted);
+  font-size: 1.1rem;
+  pointer-events: none;
+  line-height: 1;
+}
+
+.search-input {
+  width: 100%;
+  border: 1px solid var(--border);
+  border-radius: 20px;
+  padding: .38rem .75rem .38rem 1.9rem;
+  background: var(--surface);
+  color: var(--text);
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  font-size: .88rem;
+  outline: none;
+  transition: border-color .15s;
+}
+
+.search-input:focus { border-color: var(--primary); }
+.search-input::placeholder { color: var(--text-muted); }
+
+.search-clear {
+  position: absolute;
+  right: .5rem;
+  top: 50%;
+  transform: translateY(-50%);
+  background: none;
+  border: none;
+  color: var(--text-muted);
+  cursor: pointer;
+  font-size: .75rem;
+  padding: .2rem;
+  line-height: 1;
+}
+
+.search-clear:hover { color: var(--text); }
+
 .filter-btn {
   padding: 0.4rem 0.9rem;
   border-radius: 20px;
@@ -388,10 +464,38 @@ body {
 .status-dot.answered { background: var(--answered-dot); }
 .status-dot.archived { background: var(--text-muted); }
 
+.card-text {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  gap: .15rem;
+}
+
+.person-name {
+  font-size: .82rem;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  font-weight: 600;
+  color: var(--primary);
+  letter-spacing: .01em;
+}
+
+mark.highlight {
+  background: #fde68a;
+  color: inherit;
+  border-radius: 2px;
+  padding: 0 1px;
+}
+
+@media (prefers-color-scheme: dark) {
+  mark.highlight { background: #78540a; }
+}
+
+:root[data-theme="dark"] mark.highlight { background: #78540a; }
+:root[data-theme="light"] mark.highlight { background: #fde68a; }
+
 .request-text {
   font-size: 0.97rem;
   line-height: 1.5;
-  flex: 1;
 }
 
 .card-meta {