Add photo search with Boolean operators

- Server-side search index built from all album.json files + people.json,
  cached in memory for 5 minutes.  Each photo document includes filename,
  album path words, title, caption, camera, date parts (year/month-name/
  full date), and person names.
- Recursive-descent Boolean parser: AND (explicit or implicit between
  consecutive terms), OR, NOT, with standard precedence.
- GET /search?q=... returns a photo grid (max 300 results) linking each
  photo back to its album lightbox.
- Search box added to the site header; hidden on mobile.
- Results show filename, date, person names, and album path per photo.

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

1 files changed, 27 insertions, 0 deletions

diff --git a/public/css/style.css b/public/css/style.css
index ba9b822..47147f4 100644
--- a/public/css/style.css
+++ b/public/css/style.css
@@ -366,6 +366,32 @@ legend { padding: 0 8px; color: var(--text-dim); font-size: .85rem; }
 .sub-album-list { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
 .sub-album-list a { padding: 4px 12px; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); font-size: .9rem; }
 
+/* ── Header search ─────────────────────────────────────────────────────── */
+.header-search { flex: 1; display: flex; justify-content: center; padding: 0 20px; }
+.header-search-input {
+  width: 200px;
+  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius);
+  color: var(--text); padding: 5px 12px; font-size: .85rem;
+  transition: width .2s, border-color .15s;
+}
+.header-search-input:focus { width: 300px; border-color: var(--accent); outline: none; }
+
+/* ── Search results page ────────────────────────────────────────────────── */
+.search-form  { display: flex; gap: 8px; margin: 14px 0 8px; }
+.search-input {
+  flex: 1; max-width: 540px;
+  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius);
+  color: var(--text); padding: 8px 12px; font-size: 1rem;
+}
+.search-input:focus  { border-color: var(--accent); outline: none; }
+.search-hint         { font-size: .8rem; color: var(--text-dim); margin: 0 0 18px; }
+.search-hint code    { background: var(--bg3); padding: 1px 5px; border-radius: 3px; font-size: .85em; }
+.search-card .card-meta { padding: 6px 8px 8px; }
+.search-album-path   { font-size: .72rem; color: var(--text-dim); margin-top: 3px;
+                       overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.search-album-path a { color: var(--text-dim); }
+.search-album-path a:hover { color: var(--accent); }
+
 /* ── Responsive ────────────────────────────────────────────────────────── */
 @media (max-width: 600px) {
   :root { --thumb: 140px; --gap: 8px; }
@@ -373,6 +399,7 @@ legend { padding: 0 8px; color: var(--text-dim); font-size: .85rem; }
   .lb-prev { left: 4px; }
   .lb-next { right: 4px; }
   .files-table { font-size: .78rem; }
+  .header-search { display: none; }
 }
 
 /* ── Unplayable originals (admin-only) ─────────────────────────────────── */