Homepage (TDD slice 4): the pages, theme, and toggle

Red tests first, then the pages.
- tests/homepage_pages.bats: the pages reference the data + theme; no
  auto-refresh (Q41); no cursor alteration (Q28); the styling toggle strips
  to bare HTML (Q27); the footer shows the last master deployment datetime
  (Q43).
- index.html / admin.html: the user and admin pages. A grid of TUI panels,
  a summary line, the bare toggle, the deployed-at footer.
- app.js: reads status.json + services.json once (no auto-refresh), renders
  one panel per service for the page's category, the toggle, the footer.
- style.css: the terminal TUI theme (green-on-black, phosphor palette,
  scanlines) + a ?bare=1 mode that strips to unstyled HTML. No custom cursor.

Functionally verified with a Node DOM shim: 9 user panels, correct summary,
correct footer datetime.

shared/homepage/style.css

@@ -1,63 +1,85 @@
+/* The homepage theme: terminal TUI, green-on-black, 1995 phosphor palette.
+   A ?bare=1 toggle strips the page to bare, unstyled HTML (Q27). The page
+   never sets a custom or hidden cursor, so the user's cursor is untouched (Q28). */
+
 :root {
-  --bg: #0f1115;
-  --card: #171a21;
-  --border: #2a2f3a;
-  --text: #e6e8eb;
-  --muted: #8b93a1;
-  --up: #3fb950;
-  --down: #f85149;
-  --accent: #58a6ff;
+  --bg: #050805;
+  --fg: #33ff66;
+  --dim: #2f8f52;
+  --down: #ff5555;
+  --wip: #ffcc33;
+  --link: #33ccff;
+  --head: #aaffcc;
+  --border: #1a4d2e;
+  --panel: #0a120a;
 }
 
-* { box-sizing: border-box; margin: 0; padding: 0; }
+* { box-sizing: border-box; }
+
+html { background: var(--bg); }
 
 body {
   background: var(--bg);
-  color: var(--text);
-  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
-  line-height: 1.5;
-  min-height: 100vh;
+  color: var(--fg);
+  font-family: "Terminus", "Fira Code", "DejaVu Sans Mono", "Consolas", monospace;
+  font-size: 15px;
+  line-height: 1.55;
+  margin: 0;
+  padding: 24px;
+  text-shadow: 0 0 4px rgba(51, 255, 102, 0.30);
 }
 
-main { max-width: 960px; margin: 0 auto; padding: 2rem 1.5rem; }
+/* Subtle scanlines. */
+body::before {
+  content: "";
+  position: fixed;
+  inset: 0;
+  pointer-events: none;
+  z-index: 9999;
+  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0) 0 2px, rgba(0, 0, 0, 0.14) 2px 4px);
+}
 
-header { margin-bottom: 2rem; }
-h1 { font-size: 2rem; font-weight: 650; letter-spacing: -0.02em; }
-.subtitle { color: var(--muted); margin-top: 0.25rem; }
+.top {
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  border-bottom: 1px solid var(--border);
+  padding-bottom: 8px;
+}
+.title { color: var(--head); }
+.toggle { color: var(--link); text-decoration: none; border: 1px solid var(--border); padding: 0 8px; }
+
+.summary { color: var(--dim); margin: 12px 0; letter-spacing: 0.05em; }
 
 .grid {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
-  gap: 1rem;
+  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
+  gap: 12px;
 }
 
-.card {
-  background: var(--card);
-  border: 1px solid var(--border);
-  border-radius: 10px;
-  padding: 1rem 1.1rem;
+.panel { border: 1px solid var(--border); background: var(--panel); padding: 12px 14px; border-radius: 2px; }
+.panel-head { display: flex; justify-content: space-between; align-items: center; }
+.name { color: var(--head); }
+.badge { border: 1px solid currentColor; padding: 0 6px; border-radius: 2px; font-size: 12px; }
+.badge.up { color: var(--fg); }
+.badge.down { color: var(--down); }
+.badge.wip { color: var(--wip); }
+.desc { color: var(--fg); margin: 8px 0; }
+.links a { color: var(--link); text-decoration: underline; margin-right: 12px; }
+
+.foot {
+  margin-top: 24px;
+  border-top: 1px solid var(--border);
+  padding-top: 12px;
+  color: var(--dim);
   display: flex;
-  flex-direction: column;
-  gap: 0.4rem;
-  transition: border-color 0.15s ease;
+  justify-content: space-between;
 }
+.foot a { color: var(--link); text-decoration: none; }
 
-.card:hover { border-color: var(--accent); }
-
-.card .top { display: flex; align-items: center; gap: 0.6rem; }
-.card h2 { font-size: 1.05rem; font-weight: 600; }
-
-.badge {
-  width: 10px; height: 10px; border-radius: 50%;
-  background: var(--muted); flex-shrink: 0;
-}
-.badge.up { background: var(--up); box-shadow: 0 0 6px var(--up); }
-.badge.down { background: var(--down); box-shadow: 0 0 6px var(--down); }
-.badge.checking { background: var(--accent); }
-
-.card p { color: var(--muted); font-size: 0.9rem; }
-.card .links { margin-top: auto; display: flex; gap: 1rem; font-size: 0.85rem; }
-.card a { color: var(--accent); text-decoration: none; }
-.card a:hover { text-decoration: underline; }
-
-footer { margin-top: 2.5rem; color: var(--muted); font-size: 0.8rem; }
+/* Bare mode (Q27): strip to default browser rendering. */
+html[data-bare="1"] body { background: #fff; color: #000; font-family: serif; text-shadow: none; font-size: 16px; }
+html[data-bare="1"] body::before { display: none; }
+html[data-bare="1"] .panel, html[data-bare="1"] .top, html[data-bare="1"] .foot { border-color: #000; background: none; }
+html[data-bare="1"] .badge, html[data-bare="1"] .name, html[data-bare="1"] .desc, html[data-bare="1"] .summary { color: #000; }
+html[data-bare="1"] .links a, html[data-bare="1"] .toggle, html[data-bare="1"] .foot a { color: #000; }