Add copyright footer to gallery and photo pages

Renders a © 2000–<current-year> Ashik Salahudeen line under both the
index and each photo page. The year comes from time.Now().Year() at
render time so the range stays current without manual updates.

generator.go

@@ -274,6 +274,7 @@ func (g *Generator) renderIndex(photos []Photo) error {
 	return g.render("index.html", filepath.Join(g.outputDir, "index.html"), map[string]any{
 		"Photos":  photos,
 		"BaseURL": g.baseURL,
+		"Year":    time.Now().Year(),
 	})
 }
 
@@ -286,6 +287,7 @@ func (g *Generator) renderPhotoPage(p Photo) error {
 	return g.render("photo.html", filepath.Join(dir, "index.html"), map[string]any{
 		"Photo":   p,
 		"BaseURL": g.baseURL,
+		"Year":    time.Now().Year(),
 	})
 }
 

static/style.css

@@ -288,6 +288,20 @@ body {
   color: var(--fg2);
 }
 
+/* ── Site footer ───────────────────────────────────────────── */
+
+.site-footer {
+  max-width: 935px;
+  margin: 48px auto 0;
+  padding: 18px 20px 28px;
+  border-top: 1px solid var(--line);
+  text-align: center;
+  font-size: 12px;
+  color: var(--fg4);
+  font-family: monospace;
+  letter-spacing: 0.04em;
+}
+
 /* ── Responsive ────────────────────────────────────────────── */
 
 @media (max-width: 600px) {

templates/index.html

@@ -42,5 +42,9 @@
       </div>
     </div>
   </main>
+
+  <footer class="site-footer">
+    © 2000–{{.Year}} Ashik Salahudeen. All rights reserved.
+  </footer>
 </body>
 </html>

templates/photo.html

@@ -28,5 +28,9 @@
       </div>
     </div>
   </div>
+
+  <footer class="site-footer">
+    © 2000–{{.Year}} Ashik Salahudeen. All rights reserved.
+  </footer>
 </body>
 </html>