feat: add heritage discovery tab and AIGC consent dialog

- Add new HeritageDiscoverySection and HeritageQuickPrompts components for dedicated heritage discovery view
- Implement reusable AigcConsentDialog component for AI service user agreement prompts
- Update Discovery page to toggle between explore and heritage tab layouts
- Refactor legacy CardSwiper component into generic ExploreCards
- Adjust ChatMainList layout to include home hero sprite animation and restructure welcome section
- Refine NoticeMessage component styling and layout for better consistency
- Add build best practices guidance to AGENTS.md documentation
- Clean up minor config whitespace and formatting issues across files

src/pages/Discovery/components/ExploreCards/styles/index.scss

@@ -0,0 +1,151 @@
+.explore-cards {
+  width: 100%;
+  height: 356px;
+  overflow: hidden;
+}
+
+.explore-scroll {
+  width: 100%;
+  height: 356px;
+  white-space: nowrap;
+}
+
+.explore-track {
+  display: inline-flex;
+  flex-direction: row;
+  min-width: 100%;
+  height: 356px;
+  padding: 0 16px;
+  box-sizing: border-box;
+}
+
+.explore-card {
+  position: relative;
+  flex: 0 0 278px;
+  width: 278px;
+  height: 356px;
+  margin-right: 16px;
+  overflow: hidden;
+  border-radius: 28px;
+  background: #47b391;
+  color: #ffffff;
+  box-sizing: border-box;
+  transform: translateZ(0);
+}
+
+.explore-card:last-child {
+  margin-right: 0;
+}
+
+.explore-card.is-pressed {
+  opacity: 0.92;
+}
+
+.explore-card-image {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  display: block;
+}
+
+.explore-card-gradient {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  background: linear-gradient(180deg, rgba(43, 107, 122, 0) 42%, rgba(71, 179, 145, 0.72) 74%, #47b391 100%);
+}
+
+.explore-card.is-culture {
+  background: #b98563;
+}
+
+.explore-card.is-culture .explore-card-gradient {
+  background: linear-gradient(180deg, rgba(87, 57, 37, 0.08) 36%, rgba(150, 93, 55, 0.62) 72%, #b98563 100%);
+}
+
+.explore-card.is-adventure {
+  background: #5b895f;
+}
+
+.explore-card.is-adventure .explore-card-gradient {
+  background: linear-gradient(180deg, rgba(30, 58, 47, 0) 36%, rgba(47, 97, 54, 0.74) 74%, #5b895f 100%);
+}
+
+.explore-card.is-nightlife {
+  background: #438694;
+}
+
+.explore-card.is-nightlife .explore-card-gradient {
+  background: linear-gradient(180deg, rgba(12, 47, 78, 0.04) 34%, rgba(28, 92, 111, 0.72) 74%, #438694 100%);
+}
+
+.explore-card-content {
+  position: absolute;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  height: 104px;
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-end;
+  padding: 14px 58px 15px 16px;
+  border-top: 1px solid rgba(255, 255, 255, 0.3);
+  background: rgba(255, 255, 255, 0.15);
+  box-sizing: border-box;
+}
+
+.explore-card-tag {
+  display: block;
+  max-width: 100%;
+  margin-bottom: 9px;
+  color: rgba(255, 255, 255, 0.92);
+  font-size: 11px;
+  line-height: 13px;
+  font-weight: 700;
+  letter-spacing: 1.06px;
+}
+
+.explore-card-title {
+  display: block;
+  max-width: 100%;
+  margin-bottom: 4px;
+  color: #ffffff;
+  font-size: 22px;
+  line-height: 27px;
+  font-weight: 800;
+}
+
+.explore-card-desc {
+  display: block;
+  max-width: 100%;
+  color: rgba(255, 255, 255, 0.82);
+  font-size: 13px;
+  line-height: 18px;
+}
+
+.explore-card-arrow {
+  position: absolute;
+  right: 16px;
+  bottom: 35px;
+  width: 36px;
+  height: 36px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 50%;
+  background: rgba(255, 255, 255, 0.92);
+  color: #2a3538;
+  box-shadow: 0 4px 6px rgba(44, 39, 32, 0.1);
+}
+
+.explore-card-arrow text {
+  font-size: 18px;
+  line-height: 18px;
+  font-weight: 900;
+}