fix(theme): correct typography and logo accessibility

Declare the Alro heading font with its intended 700 weight and explicitly apply that weight to branded headings. Preserve the homepage logo image in the accessibility tree while rendering the theme-specific visual artwork.

Update repository guidance to document the self-contained theme architecture, Gitea 1.27.3 synchronization requirements, production asset hashing, and the complete six-theme verification matrix.

public/assets/css/branding.css

@@ -39,7 +39,16 @@ html:is(
     )
     .page-content.home
     img.logo {
-    display: none;
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    padding: 0;
+    margin: -1px;
+    overflow: hidden;
+    clip: rect(0, 0, 0, 0);
+    clip-path: inset(50%);
+    white-space: nowrap;
+    border: 0;
 }
 
 html:is(

public/assets/css/theme-codecraftsmen-dark.css

@@ -13,7 +13,7 @@ gitea-theme-meta-info {
 @font-face {
     font-family: "alro";
     src: url("../fonts/alro-bold-700.woff2") format("woff2");
-    font-weight: 400;
+    font-weight: 700;
     font-style: normal;
     font-display: swap;
 }
@@ -392,6 +392,7 @@ h6,
 .page-title,
 .repository .ui.header {
     font-family: var(--cc-font-heading);
+    font-weight: 700;
     letter-spacing: 0.02em;
 }
 

public/assets/css/theme-codecraftsmen-light.css

@@ -13,7 +13,7 @@ gitea-theme-meta-info {
 @font-face {
     font-family: "alro";
     src: url("../fonts/alro-bold-700.woff2") format("woff2");
-    font-weight: 400;
+    font-weight: 700;
     font-style: normal;
     font-display: swap;
 }
@@ -366,6 +366,7 @@ h6,
 .page-title,
 .repository .ui.header {
     font-family: var(--cc-font-heading);
+    font-weight: 700;
     letter-spacing: 0.02em;
 }