fix(config): remove old developer configs

config/technology/left.yml

@@ -0,0 +1,30 @@
+# Technology left rail — tools & launches
+- size: small
+  widgets:
+    - type: rss
+      title: Terminal Trove
+      limit: 15
+      collapse-after: 6
+      feeds:
+        - url: https://terminaltrove.com/new.xml
+          title: Terminal Trove
+    - type: rss
+      title: Product Hunt
+      limit: 15
+      collapse-after: 6
+      feeds:
+        - url: https://rss.app/feeds/_tBKt0Q2vzII4baWl.xml
+          title: Product Hunt
+    - type: rss
+      title: Dev Blogs
+      limit: 15
+      collapse-after: 6
+      feeds:
+        - url: https://github.blog/feed/
+          title: GitHub Blog
+        - url: https://rsshub.app/anthropic/research
+          title: Anthropic Research
+        - url: https://openai.com/news/rss.xml
+          title: OpenAI News
+        - url: https://rss.app/feeds/Q5ElsNVbwLHZhUPm.xml
+          title: Cloudflare Blog