feat(aigc): add template, recharge & points pages

This commit adds the full AIGC feature set including template usage flow, points recharge and transaction ledger pages, along with all supporting components, styles and data files. It also updates the home page navigation and registers all new pages in the project's pages configuration.

src/pages-aigc/useTemplate/styles/index.scss

@@ -0,0 +1,40 @@
+.aigc-use-template-page {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  width: 100vw;
+  height: 100vh;
+  min-height: 812px;
+  overflow: hidden;
+  color: #172033;
+  background:
+    radial-gradient(
+      130% 78% at 0% 0%,
+      rgba(255, 249, 226, 0.76),
+      rgba(255, 249, 226, 0) 42%
+    ),
+    linear-gradient(180deg, #effaf5 0%, #f4fbf7 58%, #eef8ff 100%);
+  box-sizing: border-box;
+}
+
+.aigc-use-template-content {
+  flex: 1 1 auto;
+  min-height: 0;
+  overflow: hidden;
+  padding: 24px 18px;
+  box-sizing: border-box;
+}
+
+.aigc-use-template-content.is-upload-guide {
+  padding: 0 12px;
+}
+
+.aigc-use-template-note {
+  display: block;
+  margin: 12px 4px 0;
+  color: #7a8596;
+  font-size: 11px;
+  line-height: 17px;
+  font-weight: 800;
+  text-align: center;
+}