feat(editorial): bundled-font @font-face + typography refs, required_icon_packs, reshoot in real serif

Declare @font-face for the bundled Playfair Display + Source Serif 4 faces
against /templates/editorial/fonts/*.woff2 and point every preset's
typography.fontHeading/fontBody at template:editorial:<Family> so
--font-heading/--font-body resolve to the bundled serifs (gotham@1.2.0
precedent; CMS BundledFonts is dead code). Declare required_icon_packs
[lucide, simple-icons] for the sprite pipeline. Recapture the 6-shot gallery
(home/about/article x light+dark) now that the serif actually renders.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

manifest.yaml

@@ -8,6 +8,7 @@
 theme_presets: presets.json
 bundled_fonts: fonts.json
 master_pages: master_pages.json
+required_icon_packs: [lucide, simple-icons]
 
 system_templates:
   - key: editorial
@@ -122,6 +123,17 @@ css:
      * <fallback>). No literal colours, no hardcoded families.
      */
 
+    /* Bundled serif faces. The host does not yet emit @font-face for
+     * bundled_fonts (LoadedPlugin.BundledFonts is unconsumed), so the theme
+     * declares its own faces against the served artifact paths
+     * (/templates/editorial/fonts/...). Presets set typography.fontHeading/body
+     * to template:editorial:<Family> so --font-heading/--font-body resolve to
+     * these families. */
+    @font-face { font-family: 'Playfair Display'; src: url('/templates/editorial/fonts/playfair-display-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }
+    @font-face { font-family: 'Playfair Display'; src: url('/templates/editorial/fonts/playfair-display-900-italic.woff2') format('woff2'); font-weight: 900; font-style: italic; font-display: swap; }
+    @font-face { font-family: 'Source Serif 4'; src: url('/templates/editorial/fonts/source-serif-4-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
+    @font-face { font-family: 'Source Serif 4'; src: url('/templates/editorial/fonts/source-serif-4-400-italic.woff2') format('woff2'); font-weight: 400; font-style: italic; font-display: swap; }
+
     @layer utilities {
       :root {
         --editorial-measure: 64ch;

presets.json

@@ -4,6 +4,10 @@
     "name": "Book Paper",
     "description": "The default. Warm off-white paper and dark serif ink by day, low-glare charcoal with sepia type by night. Oxblood accent throughout.",
     "theme": {
+      "typography": {
+        "fontHeading": "template:editorial:Playfair Display",
+        "fontBody": "template:editorial:Source Serif 4"
+      },
       "mode": "both",
       "lightColors": {
         "background": "38 32% 95%",
@@ -54,6 +58,10 @@
     "name": "Sepia Review",
     "description": "Warm sepia in both modes for a soft, magazine-like read. Amber paper and umber ink by day, deep tobacco ground by night.",
     "theme": {
+      "typography": {
+        "fontHeading": "template:editorial:Playfair Display",
+        "fontBody": "template:editorial:Source Serif 4"
+      },
       "mode": "both",
       "lightColors": {
         "background": "34 44% 93%",
@@ -104,6 +112,10 @@
     "name": "Legal Pad",
     "description": "Deeper cream and near-black ink for law, finance and long essays. Tight saturation by day, cool ink-black night desk.",
     "theme": {
+      "typography": {
+        "fontHeading": "template:editorial:Playfair Display",
+        "fontBody": "template:editorial:Source Serif 4"
+      },
       "mode": "both",
       "lightColors": {
         "background": "48 42% 93%",
@@ -154,6 +166,10 @@
     "name": "Nightdesk",
     "description": "Cooler neutral paper and a crisp after-hours reading mode. A brighter red accent for the late edition.",
     "theme": {
+      "typography": {
+        "fontHeading": "template:editorial:Playfair Display",
+        "fontBody": "template:editorial:Source Serif 4"
+      },
       "mode": "both",
       "lightColors": {
         "background": "40 20% 96%",