fix(env): address P1-P3 review items from code review

- P1: Fix bash completion $cliproxy_profiles scoping — inline profiles
  in env block since variable is only defined at COMP_CWORD=1 scope
- P2: Detect account-based profiles and show specific error message
  instead of generic "not found"
- P2: Show `ccs migrate` hint when unified mode is disabled and settings
  profile resolution fails
- P2: transformToOpenAI omits empty entries at transform time instead of
  relying on output filter (removes fragile coupling)
- P3: Add zsh and auto to --shell completions across all 4 shells; map
  --shell zsh to bash in command handler since syntax is identical
- P3: Auto-detect PowerShell from SHELL containing pwsh on non-Windows
- Tests: 33 pass (+1 pwsh detection test, updated transform assertions)

scripts/completion/ccs.bash

@@ -155,8 +155,8 @@ _ccs_completion() {
   if [[ ${COMP_WORDS[1]} == "env" ]]; then
     case "${prev}" in
       env)
-        # Complete with profile names and flags
-        local env_opts="--format --shell --help -h $cliproxy_profiles"
+        # Complete with profile names and flags (inline profiles since $cliproxy_profiles is out of scope)
+        local env_opts="--format --shell --help -h gemini codex agy qwen"
         if [[ -f ~/.ccs/config.json ]]; then
           env_opts="$env_opts $(jq -r '.profiles | keys[]' ~/.ccs/config.json 2>/dev/null || true)"
         fi
@@ -168,7 +168,7 @@ _ccs_completion() {
         return 0
         ;;
       --shell)
-        COMPREPLY=( $(compgen -W "bash fish powershell" -- ${cur}) )
+        COMPREPLY=( $(compgen -W "auto bash zsh fish powershell" -- ${cur}) )
         return 0
         ;;
       *)

scripts/completion/ccs.fish

@@ -176,7 +176,7 @@ complete -c ccs -n '__fish_seen_subcommand_from doctor' -s h -l help -d 'Show he
 complete -c ccs -n '__fish_seen_subcommand_from env' -l format -d 'Output format'
 complete -c ccs -n '__fish_seen_subcommand_from env; and __fish_seen_argument -l format' -a 'openai anthropic raw' -d 'Format'
 complete -c ccs -n '__fish_seen_subcommand_from env' -l shell -d 'Shell syntax'
-complete -c ccs -n '__fish_seen_subcommand_from env; and __fish_seen_argument -l shell' -a 'bash fish powershell' -d 'Shell'
+complete -c ccs -n '__fish_seen_subcommand_from env; and __fish_seen_argument -l shell' -a 'auto bash zsh fish powershell' -d 'Shell'
 complete -c ccs -n '__fish_seen_subcommand_from env' -s h -l help -d 'Show help for env command'
 
 # ============================================================================

scripts/completion/ccs.ps1

@@ -23,7 +23,7 @@ Register-ArgumentCompleter -CommandName ccs -ScriptBlock {
     $updateFlags = @('--force', '--beta', '--dev', '--help', '-h')
     $envFlags = @('--format', '--shell', '--help', '-h')
     $envFormats = @('openai', 'anthropic', 'raw')
-    $envShells = @('bash', 'fish', 'powershell')
+    $envShells = @('auto', 'bash', 'zsh', 'fish', 'powershell')
     $shellCompletionFlags = @('--bash', '--zsh', '--fish', '--powershell')
     $listFlags = @('--verbose', '--json')
     $removeFlags = @('--yes', '-y')

scripts/completion/ccs.zsh

@@ -128,7 +128,7 @@ _ccs() {
         env)
           _arguments \
             '--format[Output format]:format:(openai anthropic raw)' \
-            '--shell[Shell syntax]:shell:(bash fish powershell)' \
+            '--shell[Shell syntax]:shell:(auto bash zsh fish powershell)' \
             '(- *)'{-h,--help}'[Show help]' \
             '1:profile:($proxy_profiles ${(k)settings_profiles_described})'
           ;;

src/commands/env-command.ts

@@ -13,6 +13,7 @@ import { CLIPROXY_DEFAULT_PORT } from '../cliproxy/config/port-manager';
 import { isUnifiedMode, loadUnifiedConfig } from '../config/unified-config-loader';
 import { expandPath } from '../utils/helpers';
 import { getCcsDir } from '../utils/config-manager';
+import { ProfileRegistry } from '../auth/profile-registry';
 
 type ShellType = 'bash' | 'fish' | 'powershell';
 type OutputFormat = 'openai' | 'anthropic' | 'raw';
@@ -28,7 +29,7 @@ export function detectShell(flag?: string): ShellType {
   }
   const shell = process.env['SHELL'] || '';
   if (shell.includes('fish')) return 'fish';
-  if (process.platform === 'win32') return 'powershell';
+  if (shell.includes('pwsh') || process.platform === 'win32') return 'powershell';
   return 'bash';
 }
 
@@ -54,11 +55,12 @@ export function transformToOpenAI(envVars: Record<string, string>): Record<strin
   const baseUrl = envVars['ANTHROPIC_BASE_URL'] || '';
   const apiKey = envVars['ANTHROPIC_AUTH_TOKEN'] || '';
   const model = envVars['ANTHROPIC_MODEL'] || '';
-  const result: Record<string, string> = {
-    OPENAI_API_KEY: apiKey,
-    OPENAI_BASE_URL: baseUrl,
-    LOCAL_ENDPOINT: baseUrl,
-  };
+  const result: Record<string, string> = {};
+  if (apiKey) result['OPENAI_API_KEY'] = apiKey;
+  if (baseUrl) {
+    result['OPENAI_BASE_URL'] = baseUrl;
+    result['LOCAL_ENDPOINT'] = baseUrl;
+  }
   if (model) result['OPENAI_MODEL'] = model;
   return result;
 }
@@ -195,7 +197,8 @@ export async function handleEnvCommand(args: string[]): Promise<void> {
   const format = formatStr as OutputFormat;
 
   const shellStr = parseFlag(args, 'shell') || 'auto';
-  const shell = detectShell(shellStr);
+  // zsh uses the same syntax as bash
+  const shell = detectShell(shellStr === 'zsh' ? 'bash' : shellStr);
 
   // Resolve env vars based on profile type
   let envVars: Record<string, string> = {};
@@ -212,9 +215,28 @@ export async function handleEnvCommand(args: string[]): Promise<void> {
     // Settings-based profile (glm, kimi, custom API)
     const resolved = resolveSettingsProfile(profile);
     if (!resolved) {
+      // Check if it's an account-based profile
+      const registry = new ProfileRegistry();
+      const allProfiles = registry.getAllProfiles();
+      if (allProfiles[profile]) {
+        console.error(
+          fail(
+            `'${profile}' is an account-based profile. ` +
+              '`ccs env` only supports CLIProxy and settings profiles.'
+          )
+        );
+        process.exit(1);
+      }
+
       console.error(fail(`Profile '${profile}' not found.`));
       console.error(dim('  Available CLIProxy profiles: ' + CLIPROXY_PROFILES.join(', ')));
-      console.error(dim(`  Check ${getCcsDir()}/config.yaml for custom profiles.`));
+      if (!isUnifiedMode()) {
+        console.error(
+          dim('  Settings profiles require unified config. Run `ccs migrate` to upgrade.')
+        );
+      } else {
+        console.error(dim(`  Check ${getCcsDir()}/config.yaml for custom profiles.`));
+      }
       process.exit(1);
     }
     envVars = resolved;

tests/unit/commands/env-command.test.ts

@@ -60,6 +60,11 @@ describe('env-command', () => {
       process.env['SHELL'] = '/bin/bash';
       expect(detectShell('invalid')).toBe('bash');
     });
+
+    it('auto-detects powershell from SHELL containing pwsh', () => {
+      process.env['SHELL'] = '/usr/local/bin/pwsh';
+      expect(detectShell('auto')).toBe('powershell');
+    });
   });
 
   describe('formatExportLine', () => {
@@ -128,11 +133,7 @@ describe('env-command', () => {
     it('handles missing source vars gracefully', () => {
       const result = transformToOpenAI({});
 
-      expect(result).toEqual({
-        OPENAI_API_KEY: '',
-        OPENAI_BASE_URL: '',
-        LOCAL_ENDPOINT: '',
-      });
+      expect(result).toEqual({});
     });
 
     it('only extracts relevant vars', () => {
@@ -143,7 +144,7 @@ describe('env-command', () => {
         DISABLE_TELEMETRY: '1',
       });
 
-      // Should only have 3 keys (no OPENAI_MODEL when ANTHROPIC_MODEL absent)
+      // OPENAI_API_KEY + OPENAI_BASE_URL + LOCAL_ENDPOINT (no OPENAI_MODEL when ANTHROPIC_MODEL absent)
       expect(Object.keys(result)).toHaveLength(3);
       expect(result['ANTHROPIC_MAX_TOKENS']).toBeUndefined();
     });