chore(CLI): update help output.

README.md

@@ -51,12 +51,120 @@ yarn add -D devoid
 
 ```sh
 devoid src/
+```
+
+## Common Flags
+
+```sh
 devoid src/ --exports
 devoid src/ --files
 devoid src/ --locals
 devoid src/ --json
 ```
 
+## Analysis Modes
+
+### Unused Exports
+
+List exports that are never imported or referenced:
+
+```sh
+devoid src/ --exports
+```
+
+### Unused Files
+
+List files that are unreachable from the entrypoints and have no side effects:
+
+```sh
+devoid src/ --files
+```
+
+### Unused Local Identifiers
+
+Detect unused classes, enums, functions, and variables within files:
+
+```sh
+devoid src/ --locals
+# or
+devoid src/ --identifiers
+```
+
+Enable strict mode to include type declarations:
+
+```sh
+devoid src/ --locals --track-all-locals
+```
+
+### Types
+
+Detect unused exported types and local type declarations:
+
+```sh
+devoid src/ --types
+```
+
+Types mode:
+  - Tracks type and interface usage only
+  - Respects import type and export type
+  - Follows barrel and wildcard type re-exports
+  - Does not require the TypeScript type checker
+  - Does not affect runtime export analysis
+
+
+## Output Options
+
+### JSON
+
+```sh
+devoid src/ --json
+```
+
+### Summary
+
+```sh
+devoid src/ --summary-only
+```
+
+### Verbose
+
+Print raw graphs for debugging:
+
+```sh
+devoid src/ --verbose
+```
+
+## Internal (Single-File) Analysis
+
+Analyze unused identifiers within a single file only:
+
+```sh
+devoid internal src/utils/helpers.ts
+```
+
+Enable strict local tracking:
+
+```sh
+devoid internal src/utils/helpers.ts --track-all-locals
+```
+
+## Misc Options
+
+### Ignore Paths
+
+Ignore files or directories containing a substring:
+
+```sh
+devoid src/ --ignore dist --ignore generated
+```
+
+### Color Control
+
+```sh
+devoid src/ --no-color
+devoid src/ --color
+```
+
 ## License
 
 MIT © Elijah Kotyluk

src/cli/help.ts

@@ -24,6 +24,7 @@ ${colors.bold}Analysis Options:${colors.reset}
   --exports               List unused exports
   --files                 List unused files
   --locals, --identifiers List unused local identifiers
+  --types                 Enable type-only analysis (unused exported + unused local types)
   --track-all-locals      Count all variable declarations (strict mode)
 
 ${colors.bold}Output Options:${colors.reset}
@@ -37,6 +38,8 @@ ${colors.bold}Examples:${colors.reset}
   devoid src/ --json
   devoid src/ --exports
   devoid src/ --files --locals
+  devoid src/ --types
+  devoid src/ --types --json
   devoid src/ --track-all-locals
   devoid internal src/utils/helpers.ts
   devoid internal src/module.ts --track-all-locals