feat(cliproxy): add crud commands for variant profiles

- Add `ccs cliproxy create/list/remove` commands for variant management
- Interactive wizard with provider/model selection from catalog
- Settings file auto-generated with all 6 ANTHROPIC_* env fields
- Fix `ccs api create` to include all 4 model fields (was missing 3)
- Fix `--config` flag to save to correct variant settings file
- Remove paid tier badge from AGY models (all free via Antigravity)
- Add settings file format example to README for CLIProxy variants
- Add 22 unit tests for cliproxy command validation and config handling

src/commands/api-command.ts

@@ -109,6 +109,7 @@ function apiExists(name: string): boolean {
 
 /**
  * Create settings.json file for API profile
+ * Includes all 4 model fields for proper Claude CLI integration
  */
 function createSettingsFile(name: string, baseUrl: string, apiKey: string, model: string): string {
   const ccsDir = getCcsDir();
@@ -119,6 +120,9 @@ function createSettingsFile(name: string, baseUrl: string, apiKey: string, model
       ANTHROPIC_BASE_URL: baseUrl,
       ANTHROPIC_AUTH_TOKEN: apiKey,
       ANTHROPIC_MODEL: model,
+      ANTHROPIC_DEFAULT_OPUS_MODEL: model,
+      ANTHROPIC_DEFAULT_SONNET_MODEL: model,
+      ANTHROPIC_DEFAULT_HAIKU_MODEL: model,
     },
   };