Add gallery admin and video media support.

This updates gallery handling to support video playback with generated poster thumbnails, adds authenticated admin upload/delete flows, and improves dev/runtime behavior including reliable thumbnail generation and media-safe response handling.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/templates/home.templ

@@ -1,9 +1,6 @@
 package templates
 
-import (
-	"fmt"
-	"technical.kiwi/website/internal/gallery"
-)
+import "technical.kiwi/website/internal/gallery"
 
 templ Home(images []gallery.Image, hero gallery.Image, hasHero bool, contactEnabled bool) {
 	@Layout("Technical Kiwi Limited", heroPreload(hero, hasHero), homeContent(images, hero, hasHero, contactEnabled))
@@ -20,10 +17,10 @@ templ homeContent(images []gallery.Image, hero gallery.Image, hasHero bool, cont
 	<section class="hero">
 		<div class="hero-copy">
 			<p class="eyebrow">Technical Kiwi Limited</p>
-			<h1>Electronic engineering, DevOps, and interactive art</h1>
+			<h1>Electronic engineering and interactive art</h1>
 			<p class="lead">
-				We design and build lighting installations, embedded systems, and the infrastructure
-				that keeps creative technology running — from workshop bench to stage.
+				We design and build lighting installations, embedded systems, and interactive
+				experiences — from workshop bench to stage.
 			</p>
 			<div class="hero-actions">
 				<a href="#gallery" class="btn btn-primary">View our work</a>
@@ -49,105 +46,20 @@ templ homeContent(images []gallery.Image, hero gallery.Image, hasHero bool, cont
 				<h3>Electronic engineering</h3>
 				<p>Custom LED systems, control electronics, PCB design, and fabrication for installations and products.</p>
 			</article>
-			<article class="service-card">
-				<h3>DevOps &amp; infrastructure</h3>
-				<p>Servers, CI/CD, monitoring, and reliable deployments — so your systems stay up when the show goes live.</p>
-			</article>
 			<article class="service-card">
 				<h3>Interactive art</h3>
 				<p>Lighting, sound-reactive visuals, and experiential tech for events, venues, and public spaces.</p>
 			</article>
 		</div>
 	</section>
-	<section id="code" class="code-section">
-		<div class="section-head">
-			<h2>Code</h2>
-			<p>
-				All repositories on
-				<a href="https://git.technical.kiwi/" rel="noopener noreferrer" target="_blank">git.technical.kiwi</a>
-				are written and maintained by Technical Kiwi — firmware, lighting control, web services,
-				and the infrastructure behind them.
-			</p>
-		</div>
-		<a
-			href="https://git.technical.kiwi/"
-			class="code-card"
-			rel="noopener noreferrer"
-			target="_blank"
-		>
-			<div class="code-card-copy">
-				<h3>git.technical.kiwi</h3>
-				<p>
-					Source for installations, internal tools, and open components we ship or deploy
-					{ "for" } clients. Browse projects, history, and releases in one place.
-				</p>
-			</div>
-			<span class="btn btn-primary">Browse repositories</span>
-		</a>
-	</section>
 	<section id="gallery" class="gallery-section">
 		<div class="section-head">
 			<h2>Gallery</h2>
 			<p>Installations, prototypes, and behind-the-scenes work.</p>
 		</div>
-		@GalleryControls(images)
-		@GalleryCollectionControls(images)
 		<div id="gallery-grid" class="gallery-grid">
 			@GalleryGrid(images)
 		</div>
 	</section>
 	@ContactForm(contactEnabled)
 }
-
-templ GalleryControls(images []gallery.Image) {
-	<div class="gallery-controls">
-		<button
-			type="button"
-			class="filter-btn active"
-			hx-get="/gallery"
-			hx-target="#gallery-grid"
-			hx-swap="innerHTML"
-		>
-			All
-		</button>
-		for _, album := range gallery.Albums(images) {
-			<button
-				type="button"
-				class="filter-btn"
-				hx-get={ fmt.Sprintf("/gallery?album=%s", album) }
-				hx-target="#gallery-grid"
-				hx-swap="innerHTML"
-			>
-				{ gallery.AlbumLabel(album) }
-			</button>
-		}
-	</div>
-}
-
-templ GalleryCollectionControls(images []gallery.Image) {
-	if len(gallery.Collections(images, "templeoftechno")) > 0 {
-		<div class="gallery-controls gallery-controls-collections">
-			<span class="gallery-controls-label">Temple of techno</span>
-			<button
-				type="button"
-				class="filter-btn"
-				hx-get="/gallery?album=templeoftechno"
-				hx-target="#gallery-grid"
-				hx-swap="innerHTML"
-			>
-				All events
-			</button>
-			for _, key := range gallery.Collections(images, "templeoftechno") {
-				<button
-					type="button"
-					class="filter-btn"
-					hx-get={ fmt.Sprintf("/gallery?album=templeoftechno&collection=%s", key) }
-					hx-target="#gallery-grid"
-					hx-swap="innerHTML"
-				>
-					{ gallery.CollectionLabel(key, images) }
-				</button>
-			}
-		</div>
-	}
-}