Scaffold ocd: config, HTTP fetch, cache, paced pipeline, render

Rust CLI with clap subcommands (pretty/raw json/raw plain/fetch/cache/config).
Per-workspace dual HTTP (Zen balance + Go limits) run with tokio::join,
500 ms workspace pacing, TTL-180s file cache, retry/backoff for transient
failures. scrape.rs holds the only OpenCode-coupled HTML selectors (placeholders
until the real Zen/Go pages are captured). Unicode blitter-block bars in
pretty mode; stable JSON/plain raw output for widgets and agent plugins.

.gitignore

@@ -1 +1,4 @@
 .env
+/target
+/tmp/
+*.toml.bak