fix(web): rich markdown notes get block structure — paragraphs, quotes, lists, code

Tailwind preflight zeroes p/blockquote/list margins globally, so notes
rendered through renderNoteHtml collapsed flat: blank lines between
paragraphs vanished, blockquotes were indistinguishable from body text,
lists had no bullets/indent, code blocks had no padding. The parser was
always correct — the loss was CSS at the x-html display sites.

One shared scoped block (.note-rich, in @layer components so it
outranks base preflight): p+p margin-top, blockquote bar + indent +
secondary color, list markers + padding, pre/code padding + themed bg,
modest heading sizes, underlined links, table borders, em-based so it
scales with each site's text-xs/text-sm context. Applied at all three
display sites: reader notes-drawer rows (replaces the unused
reader-note-rich hook), the 📝 highlight note line, and the banner's
expanded body.

The regenerated _templ.go files also catch up two stale .templ changes
that had shipped without regeneration (the selection popover's Adjust
button, the banner delete ternary) — the Docker build regenerates at
image-build, so the served site always matched the sources.

Verified live (headless Chromium against the dev stack): .note-rich in
the served stylesheet; p+p computed marginTop 9.6px, blockquote 3px
solid border-left, ul disc + 22.4px indent, pre padded + themed bg.

templates/annotations_banner_templ.go

@@ -50,7 +50,7 @@ func AnnotationsBanner(book handlers.MediaDetail) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "</button></div><div class=\"px-4 py-3\"><button type=\"button\" id=\"export-annotations-btn\" :disabled=\"annotationsBannerLoading || bannerRows.length === 0\" @click=\"showExportDialog()\" class=\"w-full py-2 mb-3 text-sm font-medium rounded-lg border transition-opacity hover:opacity-90 disabled:opacity-50 disabled:cursor-not-allowed\" style=\"border-color: var(--border); color: var(--text-primary);\">Export all notes and highlights</button><p x-show=\"annotationsBannerLoading\" class=\"text-sm py-4\" style=\"color: var(--text-secondary);\">Loading…</p><template x-if=\"!annotationsBannerLoading && bannerRows.length === 0\"><p class=\"text-sm py-4\" style=\"color: var(--text-secondary);\">No notes or highlights on this book yet.</p></template><!-- Notes first, then highlights — stable ledger order --><div class=\"space-y-2\"><template x-for=\"row in bannerRows\" :key=\"row.key\"><div class=\"card p-0 overflow-hidden\"><button type=\"button\" class=\"w-full text-left px-4 py-3 flex items-start gap-3 hover:bg-surface-hover\" @click=\"row.expanded = !row.expanded\"><span class=\"w-1.5 self-stretch rounded-full shrink-0\" :style=\"{ backgroundColor: row.color }\"></span> <span class=\"flex-1 min-w-0\"><span class=\"block text-sm\" x-text=\"row.preview\"></span> <span class=\"block text-xs mt-0.5\" style=\"color: var(--text-secondary);\" x-text=\"row.label\"></span></span></button><!-- Jump · edit (notes + attached highlight notes) · delete\n\t\t\t\t\t\t     (location notes) — objective 8a --><div class=\"flex items-center justify-between px-4 pb-3 pt-1\"><a x-show=\"row.loc\" :href=\"'/readers/' + bannerMediaId + '?loc=' + encodeURIComponent(row.loc)\" class=\"text-xs px-2 py-1 rounded-lg border hover:bg-surface-hover transition-colors\" style=\"border-color: var(--border); color: var(--accent);\">Open reader here ↗</a><div class=\"flex items-center gap-1\"><button type=\"button\" @click=\"startBannerEdit(row)\" class=\"text-xs px-2 py-1 rounded-lg hover:bg-surface-hover\" style=\"color: var(--text-secondary);\" x-text=\"row.kind === 'highlight' ? (row.hasNote ? 'Edit note' : 'Add note') : 'Edit'\"></button> <button type=\"button\" x-show=\"row.kind === 'note'\" @click=\"deleteBannerNote(row)\" class=\"text-xs px-2 py-1 rounded-lg hover:bg-surface-hover\" style=\"color: var(--status-danger);\">✕ Delete</button></div></div><!-- Expanded rich body (markdown pipeline) --><div x-show=\"row.expanded\" class=\"px-4 pb-4\" x-html=\"row.rich\"></div></div></template></div></div></div><!-- Note edit dialog (objective 8a): raw markdown source; for\n\t     highlight rows the dialog edits the note ATTACHED to the\n\t     highlight (never the highlight itself) --><div id=\"banner-note-dialog\" x-cloak x-show=\"bannerEditOpen\" class=\"fixed inset-0 z-[60] flex items-center justify-center p-4\" style=\"background: rgba(0,0,0,.6);\"><div class=\"max-w-md w-full card p-6\"><h4 class=\"text-lg font-semibold mb-1\" style=\"color: var(--text-primary);\" x-text=\"bannerEditRow && bannerEditRow.kind === 'highlight' ? (bannerEditRow.hasNote ? 'Edit highlight note' : 'Add note to highlight') : 'Edit note'\"></h4><p class=\"text-xs mb-3\" style=\"color: var(--text-secondary);\">Markdown supported</p><textarea x-model=\"bannerEditText\" rows=\"6\" class=\"input w-full text-sm\"></textarea><div class=\"flex gap-2 mt-4\"><button type=\"button\" @click=\"saveBannerNote()\" :disabled=\"!String(bannerEditText || '').trim()\" class=\"flex-1 py-2 text-sm bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed\">Save</button> <button type=\"button\" @click=\"bannerEditOpen = false\" class=\"flex-1 py-2 text-sm border rounded hover:bg-surface-hover\" style=\"border-color: var(--border); color: var(--text-secondary);\">Cancel</button></div></div></div><!-- Export format dialog --><div id=\"annotations-export-dialog\" x-cloak x-show=\"annotationsExportOpen\" class=\"fixed inset-0 z-[60] flex items-center justify-center p-4\" style=\"background: rgba(0,0,0,.6);\"><div class=\"max-w-sm w-full card p-6\"><h4 class=\"text-lg font-semibold mb-1\" style=\"color: var(--text-primary);\">Export annotations</h4><p class=\"text-sm mb-4\" style=\"color: var(--text-secondary);\">Notes and highlights, as markdown files.</p><div class=\"space-y-2\"><button type=\"button\" @click=\"exportAnnotations('single')\" class=\"w-full py-2 px-4 text-sm text-left rounded-lg border hover:bg-surface-hover transition-colors\" style=\"border-color: var(--border); color: var(--text-primary);\">Single file — everything in one .md</button> <button type=\"button\" @click=\"exportAnnotations('multi')\" class=\"w-full py-2 px-4 text-sm text-left rounded-lg border hover:bg-surface-hover transition-colors\" style=\"border-color: var(--border); color: var(--text-primary);\">One file per item — zipped</button></div><button type=\"button\" @click=\"hideExpLine truncated
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "</button></div><div class=\"px-4 py-3\"><button type=\"button\" id=\"export-annotations-btn\" :disabled=\"annotationsBannerLoading || bannerRows.length === 0\" @click=\"showExportDialog()\" class=\"w-full py-2 mb-3 text-sm font-medium rounded-lg border transition-opacity hover:opacity-90 disabled:opacity-50 disabled:cursor-not-allowed\" style=\"border-color: var(--border); color: var(--text-primary);\">Export all notes and highlights</button><p x-show=\"annotationsBannerLoading\" class=\"text-sm py-4\" style=\"color: var(--text-secondary);\">Loading…</p><template x-if=\"!annotationsBannerLoading && bannerRows.length === 0\"><p class=\"text-sm py-4\" style=\"color: var(--text-secondary);\">No notes or highlights on this book yet.</p></template><!-- Notes first, then highlights — stable ledger order --><div class=\"space-y-2\"><template x-for=\"row in bannerRows\" :key=\"row.key\"><div class=\"card p-0 overflow-hidden\"><button type=\"button\" class=\"w-full text-left px-4 py-3 flex items-start gap-3 hover:bg-surface-hover\" @click=\"row.expanded = !row.expanded\"><span class=\"w-1.5 self-stretch rounded-full shrink-0\" :style=\"{ backgroundColor: row.color }\"></span> <span class=\"flex-1 min-w-0\"><span class=\"block text-sm\" x-text=\"row.preview\"></span> <span class=\"block text-xs mt-0.5\" style=\"color: var(--text-secondary);\" x-text=\"row.label\"></span></span></button><!-- Jump · edit (notes + attached highlight notes) · delete\n\t\t\t\t\t\t     (location notes) — objective 8a --><div class=\"flex items-center justify-between px-4 pb-3 pt-1\"><a x-show=\"row.loc\" :href=\"'/readers/' + bannerMediaId + '?loc=' + encodeURIComponent(row.loc)\" class=\"text-xs px-2 py-1 rounded-lg border hover:bg-surface-hover transition-colors\" style=\"border-color: var(--border); color: var(--accent);\">Open reader here ↗</a><div class=\"flex items-center gap-1\"><button type=\"button\" @click=\"startBannerEdit(row)\" class=\"text-xs px-2 py-1 rounded-lg hover:bg-surface-hover\" style=\"color: var(--text-secondary);\" x-text=\"row.kind === 'highlight' ? (row.hasNote ? 'Edit note' : 'Add note') : 'Edit'\"></button> <button type=\"button\" @click=\"row.kind === 'note' ? deleteBannerNote(row) : deleteBannerHighlight(row)\" class=\"text-xs px-2 py-1 rounded-lg hover:bg-surface-hover\" style=\"color: var(--status-danger);\">✕ Delete</button></div></div><!-- Expanded rich body (markdown pipeline) --><div x-show=\"row.expanded\" class=\"note-rich px-4 pb-4\" x-html=\"row.rich\"></div></div></template></div></div></div><!-- Note edit dialog (objective 8a): raw markdown source; for\n\t     highlight rows the dialog edits the note ATTACHED to the\n\t     highlight (never the highlight itself) --><div id=\"banner-note-dialog\" x-cloak x-show=\"bannerEditOpen\" class=\"fixed inset-0 z-[60] flex items-center justify-center p-4\" style=\"background: rgba(0,0,0,.6);\"><div class=\"max-w-md w-full card p-6\"><h4 class=\"text-lg font-semibold mb-1\" style=\"color: var(--text-primary);\" x-text=\"bannerEditRow && bannerEditRow.kind === 'highlight' ? (bannerEditRow.hasNote ? 'Edit highlight note' : 'Add note to highlight') : 'Edit note'\"></h4><p class=\"text-xs mb-3\" style=\"color: var(--text-secondary);\">Markdown supported</p><textarea x-model=\"bannerEditText\" rows=\"6\" class=\"input w-full text-sm\"></textarea><div class=\"flex gap-2 mt-4\"><button type=\"button\" @click=\"saveBannerNote()\" :disabled=\"!String(bannerEditText || '').trim()\" class=\"flex-1 py-2 text-sm bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed\">Save</button> <button type=\"button\" @click=\"bannerEditOpen = false\" class=\"flex-1 py-2 text-sm border rounded hover:bg-surface-hover\" style=\"border-color: var(--border); color: var(--text-secondary);\">Cancel</button></div></div></div><!-- Export format dialog --><div id=\"annotations-export-dialog\" x-cloak x-show=\"annotationsExportOpen\" class=\"fixed inset-0 z-[60] flex items-center justify-center p-4\" style=\"background: rgba(0,0,0,.6);\"><div class=\"max-w-sm w-full card p-6\"><h4 class=\"text-lg font-semibold mb-1\" style=\"color: var(--text-primary);\">Export annotations</h4><p class=\"text-sm mb-4\" style=\"color: var(--text-secondary);\">Notes and highlights, as markdown files.</p><div class=\"space-y-2\"><button type=\"button\" @click=\"exportAnnotations('single')\" class=\"w-full py-2 px-4 text-sm text-left rounded-lg border hover:bg-surface-hover transition-colors\" style=\"border-color: var(--border); color: var(--text-primary);\">Single file — everything in one .md</button> <button type=\"button\" @click=\"exportAnnotations('multi')\" class=\"w-full py-2 px-4 text-sm text-left rounded-lg border hover:bg-surface-hover transition-colors\" style=\"border-color: var(--border); color: var(--text-primary);\">One file per item — zipped</button></div><button tyLine truncated
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}