task: Wire --format flag (plain default, md, html) into sm121 health — applies to cluster health mode only; --fingerprint mode keeps its current simple listing | decisions (explicit user choices — these OVERRIDE the spec doc wherever they conflict; follow them exactly): --format applies to cluster health mode only, the --fingerprint mode keeps its current simple listing (TASK_0004)

src/cli.rs

@@ -3,11 +3,8 @@ use clap::{Args, Parser, Subcommand, ValueEnum};
 /// Output format for human-readable reports (`--format`).
 #[derive(Clone, Copy, Debug, PartialEq, Eq, ValueEnum)]
 pub enum OutputFormat {
-    /// Human-readable text (default).
     Plain,
-    /// Markdown (headings + tables).
     Md,
-    /// HTML (escaped remote data).
     Html,
 }