chore: untrack .claude, guard against AI co-authors, ruled blog grid

.gitignore

@@ -49,3 +49,6 @@ next-env.d.ts
 
 # claude-flow local tooling data
 .claude-flow/
+
+# Claude Code local settings (per-machine, never committed)
+.claude/

app/globals.css

@@ -905,25 +905,33 @@
     color: var(--color-ink);
   }
 
-  /* Blog (app/(marketing)/blog, components/patterns/blog-card.tsx). */
+  /* Blog (app/(marketing)/blog, components/patterns/blog-card.tsx).
+     Posts sit in a ruled band: it runs out to the frame's side rules and the
+     cells share hairlines (right and bottom), like the landing page grids. */
   .blog-grid {
+    --blog-line: color-mix(in srgb, var(--color-ink) 10%, transparent);
+    --blog-cols: 3;
     display: grid;
-    grid-template-columns: repeat(3, minmax(0, 1fr));
-    gap: 16px;
+    grid-template-columns: repeat(var(--blog-cols), minmax(0, 1fr));
+    margin-inline: calc(-1 * var(--lp-gutter, 0px));
+    border-top: 1px solid var(--blog-line);
   }
   .blog-card {
     display: flex;
     height: 100%;
     flex-direction: column;
     overflow: hidden;
-    border: 1px solid color-mix(in srgb, var(--color-ink) 10%, transparent);
-    border-radius: var(--radius-card);
+    border-right: 1px solid var(--blog-line);
+    border-bottom: 1px solid var(--blog-line);
     background: var(--color-surface);
-    transition: border-color 200ms ease, box-shadow 200ms ease;
+    transition: background-color 200ms ease;
+  }
+  /* The last cell in each row leans on the frame's own side rule. */
+  .blog-grid > .blog-card:nth-child(3n) {
+    border-right-color: transparent;
   }
   .blog-card:hover {
-    border-color: color-mix(in srgb, var(--color-brand) 45%, transparent);
-    box-shadow: var(--shadow-card);
+    background: color-mix(in srgb, var(--color-brand) 5%, var(--color-surface));
   }
   .blog-back {
     display: inline-flex;
@@ -953,12 +961,21 @@
   }
   @media (max-width: 1023px) {
     .blog-grid {
-      grid-template-columns: repeat(2, minmax(0, 1fr));
+      --blog-cols: 2;
+    }
+    .blog-grid > .blog-card:nth-child(3n) {
+      border-right-color: var(--blog-line);
+    }
+    .blog-grid > .blog-card:nth-child(2n) {
+      border-right-color: transparent;
     }
   }
   @media (max-width: 639px) {
     .blog-grid {
-      grid-template-columns: minmax(0, 1fr);
+      --blog-cols: 1;
+    }
+    .blog-grid > .blog-card:nth-child(n) {
+      border-right-color: transparent;
     }
   }
 

commitlint.config.mjs

@@ -1,10 +1,26 @@
 // Conventional Commits per CONTRIBUTING.md — scopes from the documented set.
 // Scope is optional for repo-level commits (docs:, chore:); when present it
 // must come from the enum.
+// Commits are authored by the maintainers alone: AI tools are never credited as
+// co-authors (GitHub would list them as repo contributors), so the trailer an
+// assistant suggests by default fails CI instead of slipping into a squash merge.
+const AI_COAUTHOR = /^co-authored-by:.*(claude|anthropic)/im;
+
 /** @type {import('@commitlint/types').UserConfig} */
 export default {
   extends: ["@commitlint/config-conventional"],
+  plugins: [
+    {
+      rules: {
+        "no-ai-coauthor": ({ raw }) => [
+          !AI_COAUTHOR.test(raw ?? ""),
+          "remove the AI Co-authored-by trailer: maintainers are the only authors",
+        ],
+      },
+    },
+  ],
   rules: {
+    "no-ai-coauthor": [2, "always"],
     "scope-enum": [
       2,
       "always",

components/patterns/site-footer.tsx

@@ -57,6 +57,27 @@ const FOOTER_SECTIONS: { title: string; links: { label: string; href: string }[]
 
 const LINK_CLASS = "text-sm text-body-copy transition-colors hover:text-ink";
 
+function Partnership() {
+  return (
+    <>
+      <p className="text-sm text-body-copy">In partnership with:</p>
+      <a
+        href="https://salamandertechhub.com/"
+        target="_blank"
+        rel="noopener noreferrer"
+        className="mt-3 inline-block transition-opacity hover:opacity-80"
+      >
+        {/* eslint-disable-next-line @next/next/no-img-element -- SVG wordmark, no raster source */}
+        <img
+          src="/images/salamander-logo-yellow.svg"
+          alt="Salamander Tech Hub"
+          className="h-9 w-auto max-w-full"
+        />
+      </a>
+    </>
+  );
+}
+
 export function SiteFooter() {
   const year = new Date().getFullYear();
 
@@ -149,20 +170,15 @@ export function SiteFooter() {
               </span>
             </li>
           </ul>
-          <p className="mt-6 text-sm text-body-copy">In partnership with:</p>
-          <a
-            href="https://salamandertechhub.com/"
-            target="_blank"
-            rel="noopener noreferrer"
-            className="mt-3 inline-block transition-opacity hover:opacity-80"
-          >
-            {/* eslint-disable-next-line @next/next/no-img-element -- SVG wordmark, no raster source */}
-            <img
-              src="/images/salamander-logo-yellow.svg"
-              alt="Salamander Tech Hub"
-              className="h-9 w-auto max-w-full"
-            />
-          </a>
+          <div className="mt-6 hidden lg:block">
+            <Partnership />
+          </div>
+        </div>
+
+        {/* Mobile: the partnership gets its own centered row under the columns
+            (lg keeps it at the foot of "Contact Us"). */}
+        <div className="col-span-2 text-center lg:hidden">
+          <Partnership />
         </div>
       </div>