fix(cli): improve --include help text with valid values and example

Explicitly list 'thinking' and 'output' as valid values and show an
example invocation so users can discover options from --help.

Closes claudbg-a532

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

.beans/claudbg-a532--include-help-text-should-enumerate-valid-values.md

@@ -1,11 +1,11 @@
 ---
 # claudbg-a532
 title: '`--include` help text should enumerate valid values'
-status: todo
+status: completed
 type: bug
 priority: low
 created_at: 2026-03-30T04:38:03Z
-updated_at: 2026-03-30T04:41:14Z
+updated_at: 2026-03-30T05:16:36Z
 parent: claudbg-tci9
 ---
 
@@ -35,3 +35,7 @@ Since `IncludeList` is a comma-separated composite (not a single enum value), op
 ## Relevant files
 
 - `src/cli.rs` — `IncludeList`, `GlobalOpts`, the `include` field annotation
+
+## Summary of Changes
+
+Updated the doc comment on the --include field in src/cli.rs to explicitly enumerate valid values (thinking, output) and provide an example.

src/cli.rs

@@ -72,7 +72,8 @@ pub struct GlobalOpts {
     /// Show full UUIDs and extra detail.
     #[arg(long, global = true)]
     pub verbose: bool,
-    /// Comma-separated content to include: thinking, output.
+    /// Comma-separated list of extra content to include in transcriptions.
+    /// Valid values: thinking, output. Example: --include thinking,output
     #[arg(long, global = true, default_value = "")]
     pub include: IncludeList,
 }