chore: repoint remaining links and host-specific tooling at git.swaits.com

Covers files missed by the first pass (.svelte/.astro components, bare org and
profile links, plugin doc headers), plus content that needed rewriting rather
than a URL swap: the chezmoi bootstrap script now provisions SSH for
git.swaits.com (User git, port 2222) and initialises from Gitea.

Link labels were updated to match their new targets.

src/components/EspFlashFlow.svelte

@@ -227,7 +227,7 @@
       <p class="text-warn text-sm mb-2">
         .bin file not available for this release.
         <a
-          href="https://github.com/donglora/firmware/releases"
+          href="https://git.swaits.com/donglora/firmware/releases"
           class="text-accent hover:text-accent-bright"
           target="_blank"
           rel="noopener noreferrer"

src/components/Uf2DownloadFlow.svelte

@@ -46,7 +46,7 @@
       <p class="text-warn text-sm">
         UF2 file not found for {board.name} v{release.version}.
         <a
-          href="https://github.com/donglora/firmware/releases"
+          href="https://git.swaits.com/donglora/firmware/releases"
           class="text-accent hover:text-accent-bright"
           target="_blank"
           rel="noopener noreferrer"

src/components/VersionSelector.svelte

@@ -40,7 +40,7 @@
     <div class="text-error text-sm">
       {error}
       <a
-        href="https://github.com/donglora/firmware/releases"
+        href="https://git.swaits.com/donglora/firmware/releases"
         class="text-accent hover:text-accent-bright ml-2"
         target="_blank"
         rel="noopener noreferrer"

src/layouts/Base.astro

@@ -34,7 +34,7 @@ const { title, description = "Protocol-agnostic LoRa over USB" } = Astro.props;
         <a href="/" class="text-text-muted hover:text-text transition-colors">Home</a>
         <a href="/flash" class="text-text-muted hover:text-text transition-colors">Flasher</a>
         <a
-          href="https://github.com/donglora"
+          href="https://git.swaits.com/donglora"
           class="text-text-muted hover:text-text transition-colors"
           target="_blank"
           rel="noopener noreferrer"
@@ -58,12 +58,12 @@ const { title, description = "Protocol-agnostic LoRa over USB" } = Astro.props;
         <p>
           MIT License &middot;
           <a
-            href="https://github.com/donglora"
+            href="https://git.swaits.com/donglora"
             class="text-text-muted hover:text-accent transition-colors"
             target="_blank"
             rel="noopener noreferrer"
           >
-            github.com/donglora
+            git.swaits.com/donglora
           </a>
         </p>
       </div>