CC-1984: Change uncomment code text

[andy1li]

CC-1984: Change uncomment code text

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Note

Rewords starter comments to say “Uncomment the code below” and enables stage‑1 TCP listener implementations in 01‑at4 solutions across all languages.

• Starters (compiled_starters + starter_templates):
  • Reword instructional comment from "Uncomment this block to pass the first stage" to "Uncomment the code below to pass the first stage" across c, clojure, cpp, csharp, elixir, gleam, go, java, kotlin, rust, zig files.
• Solutions (01-at4):
  • Activate stage-1 TCP listeners across languages: create/bind/listen/accept flows (with SO_REUSEADDR where applicable), replacing initial log-only stubs. Examples include c (socket/bind/listen/accept), cpp, csharp (TcpListener), elixir (:gen_tcp.listen/accept), gleam (glisten.serve), go (net.Listen + Accept), java (ServerSocket with setReuseAddress(true)), kotlin (ServerSocket with reuseAddress = true), rust (TcpListener::bind + incoming loop), zig (net.Address.listen + accept).

^{Written by Cursor Bugbot for commit 7a92409. This will update automatically on new commits. Configure here.}

[linear]

CC-1984 Change uncomment code text