docs: update Claude Code releases (v2.1.70, v2.1.71)

- v2.1.71: /loop command + cron scheduling tools for recurring prompts
- v2.1.70: VSCode spark icon + API 400 fixes + perf (−74% re-renders, −426KB startup)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

machine-readable/claude-code-releases.yaml

@@ -3,8 +3,8 @@
 # Purpose: Track Claude Code product releases for documentation sync
 # Maintained: Manual updates when new releases are announced
 
-latest: "2.1.69"
-updated: "2026-03-05"
+latest: "2.1.71"
+updated: "2026-03-08"
 
 # ════════════════════════════════════════════════════════════════
 # RELEASES (newest first, condensed highlights only)
@@ -15,6 +15,28 @@ releases:
   # 2.1.x Series (January-March 2026)
   # ─────────────────────────────────────────────────────────────
 
+  - version: "2.1.71"
+    date: "2026-03-06"
+    highlights:
+      - "⭐ /loop command: run a prompt or slash command on a recurring interval (e.g. /loop 5m check deploy)"
+      - "⭐ Cron scheduling tools for recurring prompts within a session"
+      - "voice:pushToTalk keybinding now rebindable in keybindings.json (default: space)"
+      - "Fixed stdin freeze in long sessions; 5-8s startup freeze with voice; forked sessions sharing plan files"
+      - "Improved plugin MCP server deduplication; /plugin uninstall now edits settings.local.json"
+      - "Removed startup noise for unauthenticated org-registered claude.ai connectors"
+    breaking: []
+
+  - version: "2.1.70"
+    date: "2026-03-06"
+    highlights:
+      - "⭐ VSCode: spark icon in activity bar listing all sessions; plan markdown view; native MCP management dialog"
+      - "Fixed API 400 errors with third-party gateways (ANTHROPIC_BASE_URL) and Bedrock custom inference profiles"
+      - "Fixed empty responses after ToolSearch + prompt-cache bust when MCP server with instructions connects"
+      - "Fixed voice on Windows native binary; clipboard CJK/emoji corruption on Windows/WSL"
+      - "Reduced prompt input re-renders by ~74%; startup memory -426KB; Remote Control poll rate 300× lower"
+      - "Improved /rename works while Claude is processing; /color command can now reset to default"
+    breaking: []
+
   - version: "2.1.69"
     date: "2026-03-04"
     highlights: