docs(CHANGES): Add search, ls enhancements, debug-info --json

Document new features added to CLI Colors PR #1006:
- New tmuxp search command with field-scoped search
- Enhanced tmuxp ls with --tree, --full, --json, --ndjson
- Local workspace discovery from cwd and parents
- tmuxp debug-info --json for machine-readable output

Author: tony

CHANGES

@@ -45,6 +45,30 @@ New semantic color output for all CLI commands:
 - `PrivatePath` utility masks home directory as `~` for privacy protection in output
 - Beautiful `--help` output with usage examples
 
+#### Search Command (#1006)
+
+New `tmuxp search` command for finding workspace files:
+
+- Field-scoped search with prefixes: `name:`, `session:`, `path:`, `window:`, `pane:`
+- Matching options: `-i` (ignore-case), `-S` (smart-case), `-F` (fixed-strings), `-w` (word)
+- Logic operators: `--any` for OR, `-v` for invert match
+- Output formats: human (with match highlighting), `--json`, `--ndjson`
+- Searches local (cwd and parents) and global (~/.tmuxp/) workspaces
+
+#### Enhanced ls Command (#1006)
+
+New output options for `tmuxp ls`:
+
+- `--tree`: Display workspaces grouped by directory
+- `--full`: Include complete parsed config content
+- `--json` / `--ndjson`: Machine-readable output formats
+- Local workspace discovery from current directory and parents
+- Source field distinguishes "local" vs "global" workspaces
+
+#### JSON Output for debug-info (#1006)
+
+- `tmuxp debug-info --json`: Structured JSON output for machine parsing
+
 ### Development
 
 #### Makefile -> Justfile (#1005)