Events: add AWS Community Day Shenzhen to the community calendar (#891)

The 3D cloud-native topology session was accepted by 2026 亚马逊云科技
Community Day · 深圳 (Oct 17), a week before the Hong Kong edition
(Oct 24). Same talk, delivered in Chinese rather than English.

Adds an optional `lang` field so one session appearing at two events in
different languages is distinguishable, rendered as a small chip next to
the speaker. Only shown where a talk sets it, so every existing entry is
unaffected.

The Shenzhen agenda is not published yet, so the title carries the
English one the session is already listed under, with a note in the data
file to swap in the Chinese title once the agenda lands.

Author: wu-sheng

assets/scss/_custom_home.scss

@@ -929,6 +929,12 @@ $brand-grad: linear-gradient(180deg, #479EEB 0%, #3788D0 100%);
     .cal-speaker { font-weight: 600; color: $body; }
     .cal-sep { color: #c9d2dd; }
   }
+  // delivery language — only rendered where a talk sets it
+  .cal-lang {
+    font-size: 10.5px; font-weight: 700; letter-spacing: .03em;
+    padding: 2px 7px; border-radius: 999px;
+    background: #f2f4f7; color: #5b6573;
+  }
   .cal-talk-intro {
     font-size: 13px; color: $body; line-height: 1.6; margin: 5px 0 0;
     max-width: 68ch;

data/talks.yml

@@ -36,6 +36,11 @@
 #     intro     optional  one or two sentences on what the session covers, in the
 #                         same language as the title. Condense the published
 #                         abstract; do not invent one where none exists.
+#     lang      optional  the language the session is delivered in, e.g. "中文" or
+#                         "English". Only worth setting when it is not obvious from
+#                         the title, or when the same talk is given in both — a
+#                         speaker may take one session to two events in different
+#                         languages.
 #     date      optional  "YYYY-MM-DD" when the session day differs from `start`
 #     time      optional  e.g. "13:30 GMT+8"
 #     room      optional
@@ -54,6 +59,21 @@ events:
     talks:
       - title: "Beyond Flat Topologies: Visualizing the Cloud-Native Stack in 3D"
         speaker: 吴晟 Sheng Wu
+        lang: English
+
+  - event: 2026 亚马逊云科技 Community Day · 深圳
+    intro: >-
+      The AWS User Group's annual community conference in Shenzhen, themed "Bridge with Signal · 以价值信号连通现在与未来" — a full day of 20+ community talks across four parallel tracks, run by and for local developers.
+    start: "2026-10-17"
+    location: Shenzhen, China
+    url: https://2026-autumn.awscommunityday.cn/
+    talks:
+      # Same session as AWS Community Day Hong Kong a week later, delivered in Chinese.
+      # The Shenzhen agenda is not published yet, so the title here is the English one
+      # the session is already listed under; swap in the Chinese title once it is out.
+      - title: "Beyond Flat Topologies: Visualizing the Cloud-Native Stack in 3D"
+        speaker: 吴晟 Sheng Wu
+        lang: 中文
 
   - event: Community Over Code Asia 2026
     intro: >-

layouts/events/calendar.html

@@ -237,6 +237,7 @@ <h3 class="cal-title">
           </p>
           <p class="cal-talk-sub">
             <span class="cal-speaker">{{ .speaker }}</span>
+            {{ with .lang }}<span class="cal-lang">{{ . }}</span>{{ end }}
             {{ with .date }}<span class="cal-sep">·</span><span>{{ (time.AsTime .).Format "Jan 2" }}</span>{{ end }}
             {{ with .time }}<span class="cal-sep">·</span><span>{{ . }}</span>{{ end }}
             {{ with .room }}<span class="cal-sep">·</span><span>{{ . }}</span>{{ end }}