feat: complete CLI docs coverage with expandable flag tables (WIP)

- Switch gen_docs parser from --help to -h for single-line flag descriptions
- Add continuation line handling for clap's wrapped long descriptions
- Add all missing primary commands (sign, whoami, tutorial, doctor)
- Add all missing advanced commands (git, trust, org, audit, agent, witness,
  scim, config, approval, artifact, completions)
- Add about text to LearnCommand, CommitCmd, DebugCmd structs
- Generate HTML tables with command descriptions from help output
- Add expandable flag tables: top 5 flags visible, "Show all flags" toggle
  for the rest (pure CSS checkbox hack — not yet working, needs debugging)
- Add flags-container CSS styling for light/dark mode

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

Author: bordumb

crates/auths-cli/src/commands/commit/mod.rs

@@ -7,6 +7,7 @@ use crate::commands::verify_commit::VerifyCommitCommand;
 use crate::config::CliConfig;
 
 #[derive(Args, Debug, Clone)]
+#[command(about = "Low-level commit signing and verification")]
 pub struct CommitCmd {
     #[command(subcommand)]
     pub command: CommitSubcommand,

crates/auths-cli/src/commands/debug/mod.rs

@@ -8,6 +8,7 @@ use crate::commands::utils::UtilCommand;
 use crate::config::CliConfig;
 
 #[derive(Args, Debug, Clone)]
+#[command(about = "Internal debugging utilities")]
 pub struct DebugCmd {
     #[command(subcommand)]
     pub command: DebugSubcommand,

crates/auths-cli/src/commands/learn.rs

@@ -8,6 +8,7 @@ use std::process::Command as ProcessCommand;
 
 /// Interactive tutorial for learning Auths concepts.
 #[derive(Parser, Debug, Clone)]
+#[command(about = "Interactive tutorial for learning Auths concepts")]
 pub struct LearnCommand {
     /// Skip to a specific section (1-6).
     #[clap(long, short, value_name = "SECTION")]