feat: add plug-and-play devRant API client examples with Python and JavaScript

Add complete set of example scripts for the devRant REST protocol under
examples/devrant/, including reusable client libraries, a rant poster,
a live feed watcher with keyword-based auto-upvote, and an end-to-end
smoke test that exercises every endpoint. Both Python (stdlib-only) and
JavaScript (Node 18+ global fetch) implementations are provided.

examples/xmlrpc/digest.py

@@ -0,0 +1,48 @@
+# retoor <retoor@molodetz.nl>
+
+from __future__ import annotations
+
+import os
+
+from client import DevPlace
+
+URL = os.environ.get("DEVPLACE_URL", "https://devplace.net")
+API_KEY = os.environ.get("DEVPLACE_API_KEY", "YOUR_API_KEY")
+POST_IT = os.environ.get("DEVPLACE_DIGEST_POST") == "1"
+
+
+def build_digest(dp: DevPlace) -> str:
+    lines = ["# DevPlace digest", ""]
+
+    posts = dp.call("feed.list").get("posts", [])[:5]
+    lines.append("## Latest posts")
+    for item in posts:
+        post = item["post"]
+        lines.append(f"- {post.get('title') or post['uid']} by @{item['author']['username']}")
+    lines.append("")
+
+    leaders = dp.call("leaderboard").get("entries", [])[:5]
+    lines.append("## Top members")
+    for entry in leaders:
+        lines.append(f"- #{entry.get('rank')} @{entry.get('username')} ({entry.get('stars')} stars)")
+    lines.append("")
+
+    articles = dp.call("news.list").get("articles", [])[:5]
+    lines.append("## Developer news")
+    for article in articles:
+        lines.append(f"- {article.get('title')} ({article.get('source_name')})")
+
+    return "\n".join(lines)
+
+
+def main() -> None:
+    dp = DevPlace(URL, api_key=API_KEY)
+    digest = build_digest(dp)
+    print(digest)
+    if POST_IT:
+        result = dp.call("posts.create", content=digest, title="Daily digest", topic="devlog")
+        print("\nposted:", result.get("redirect"))
+
+
+if __name__ == "__main__":
+    main()