Rename frontend template references: Bookmann → Bookhoard

Template changes:
- Update page titles: "Bookmann" → "Bookhoard"
- Update header branding and navigation text
- Regenerate compiled .go templates from .templ sources
- Update all UI references in HTML templates

This is part 3 of the project rename to Bookhoard.

templates/header_templ.go

@@ -29,7 +29,7 @@ func Header(user User, currentPath string) templ.Component {
 			templ_7745c5c3_Var1 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<nav class=\"border-b header-nav\" style=\"border-color: var(--border); background-color: var(--bg-secondary)\"><div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\"><div class=\"flex justify-between items-center h-16\"><!-- Left: App Title & Navigation --><div class=\"flex items-center space-x-6\"><a href=\"/bookshelf\" class=\"text-xl font-bold hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); text-decoration: none;\">📚 Bookmann</a><div class=\"hidden md:flex items-center space-x-4\"><a href=\"/bookshelf\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Library</a> <a href=\"/collections\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Collections</a> <a href=\"/progress\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Progress</a> <a href=\"/devices\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Devices</a></div></div><!-- Center: Search Box --><div class=\"flex-1 max-w-2xl mx-8\"><div class=\"relative\"><input type=\"text\" id=\"header-search\" placeholder=\"Search your library...\" class=\"w-full px-4 py-2 pl-10 border rounded-lg\" style=\"background-color: var(--bg-primary); color: var(--text-primary); border-color: var(--border);\" autocomplete=\"off\"> <svg class=\"absolute left-3 top-2.5 h-5 w-5\" style=\"color: var(--text-secondary)\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z\"></path></svg></div></div><!-- Right: Theme Switcher & User Menu --><div class=\"flex items-center space-x-4\"><!-- Theme Switcher --><div class=\"relative\"><button onclick=\"toggleThemeDropdown()\" class=\"p-2 rounded-lg hover:bg-gray-700 transition-colors\" style=\"background-color: var(--bg-primary);\"><svg class=\"h-6 w-6\" style=\"color: var(--text-primary)\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01\"></path></svg></button><div id=\"theme-dropdown\" class=\"hidden absolute right-0 mt-2 w-64 rounded-lg shadow-lg z-50\" style=\"background-color: var(--bg-secondary); border: 1px solid var(--border);\"><div class=\"p-4\"><h3 class=\"text-sm font-semibold mb-3\" style=\"color: var(--text-primary)\">Select Theme</h3><div class=\"space-y-2\"><button onclick=\"changeThemeTo('tokyo-night')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #7aa2f7;\"></span> Tokyo Night</button> <button onclick=\"changeThemeTo('dracula')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #bd93f9;\"></span> Dracula</button> <button onclick=\"changeThemeTo('nord')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #88c0d0;\"></span> Nord</button> <button onclick=\"changeThemeTo('solarized-dark')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #2aa198;\"></span> Solarized Dark</button> <button onclick=\"changeThemeTo('monokai')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #a6e22e;\"></span> Monokai</button> <button onclick=\"changeThemeTo('one-dark-pro')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #61dafb;\"></span> One Dark Pro</button> <button onclick=\"changeThemeTo('material-dark')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=Line truncated
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<nav class=\"border-b header-nav\" style=\"border-color: var(--border); background-color: var(--bg-secondary)\"><div class=\"max-w-7xl mx-auto px-4 sm:px-6 lg:px-8\"><div class=\"flex justify-between items-center h-16\"><!-- Left: App Title & Navigation --><div class=\"flex items-center space-x-6\"><a href=\"/bookshelf\" class=\"text-xl font-bold hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); text-decoration: none;\">📚 Bookhoard</a><div class=\"hidden md:flex items-center space-x-4\"><a href=\"/bookshelf\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Library</a> <a href=\"/collections\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Collections</a> <a href=\"/progress\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Progress</a> <a href=\"/devices\" class=\"text-sm hover:opacity-80 transition-opacity\" style=\"color: var(--text-secondary); text-decoration: none;\">Devices</a></div></div><!-- Center: Search Box --><div class=\"flex-1 max-w-2xl mx-8\"><div class=\"relative\"><input type=\"text\" id=\"header-search\" placeholder=\"Search your library...\" class=\"w-full px-4 py-2 pl-10 border rounded-lg\" style=\"background-color: var(--bg-primary); color: var(--text-primary); border-color: var(--border);\" autocomplete=\"off\"> <svg class=\"absolute left-3 top-2.5 h-5 w-5\" style=\"color: var(--text-secondary)\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z\"></path></svg></div></div><!-- Right: Theme Switcher & User Menu --><div class=\"flex items-center space-x-4\"><!-- Theme Switcher --><div class=\"relative\"><button onclick=\"toggleThemeDropdown()\" class=\"p-2 rounded-lg hover:bg-gray-700 transition-colors\" style=\"background-color: var(--bg-primary);\"><svg class=\"h-6 w-6\" style=\"color: var(--text-primary)\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M7 21a4 4 0 01-4-4V5a2 2 0 012-2h4a2 2 0 012 2v12a4 4 0 01-4 4zm0 0h12a2 2 0 002-2v-4a2 2 0 00-2-2h-2.343M11 7.343l1.657-1.657a2 2 0 012.828 0l2.829 2.829a2 2 0 010 2.828l-8.486 8.485M7 17h.01\"></path></svg></button><div id=\"theme-dropdown\" class=\"hidden absolute right-0 mt-2 w-64 rounded-lg shadow-lg z-50\" style=\"background-color: var(--bg-secondary); border: 1px solid var(--border);\"><div class=\"p-4\"><h3 class=\"text-sm font-semibold mb-3\" style=\"color: var(--text-primary)\">Select Theme</h3><div class=\"space-y-2\"><button onclick=\"changeThemeTo('tokyo-night')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #7aa2f7;\"></span> Tokyo Night</button> <button onclick=\"changeThemeTo('dracula')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #bd93f9;\"></span> Dracula</button> <button onclick=\"changeThemeTo('nord')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #88c0d0;\"></span> Nord</button> <button onclick=\"changeThemeTo('solarized-dark')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #2aa198;\"></span> Solarized Dark</button> <button onclick=\"changeThemeTo('monokai')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #a6e22e;\"></span> Monokai</button> <button onclick=\"changeThemeTo('one-dark-pro')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span class=\"inline-block w-4 h-4 rounded mr-2\" style=\"background-color: #61dafb;\"></span> One Dark Pro</button> <button onclick=\"changeThemeTo('material-dark')\" class=\"w-full text-left px-3 py-2 rounded hover:opacity-80 transition-opacity\" style=\"color: var(--text-primary); background-color: var(--bg-primary);\"><span classLine truncated
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}