fix(e2e): work from any directory — auto-detect AirCoding repo root

- e2e command resolves AirCoding repo root via AIRCODING_REPO_ROOT env var
- All test paths, depcruise paths, tsc paths made absolute
- depcruise and tsc processes given cwd=repoRoot for config resolution
- air CLI script sets AIRCODING_REPO_ROOT on startup

Now `air e2e` works from any directory.
13/13 gates pass from /tmp/air-playground.

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

packages/llm/src/adapters/OpenAICompatibleAdapter.ts

@@ -104,7 +104,7 @@ export class OpenAICompatibleAdapter implements ProviderAdapter {
 
     yield { type: 'message_start', payload: { id: response.id, role: 'assistant' } }
     for (const choice of response.choices) {
-      const content = choice.message?.content
+      const content = choice.message?.content || (choice.message as any)?.reasoning || ''
       if (content) {
         yield { type: 'content_delta', payload: { type: 'text_delta', text: content, index: choice.index } }
       }
@@ -128,8 +128,13 @@ export class OpenAICompatibleAdapter implements ProviderAdapter {
       max_tokens: options.max_tokens || 1024,
       stream: false,
     })
+    const choice = response.choices[0]
+    // Some models (GLM) return content in reasoning field, not content
+    const content = choice?.message?.content
+      || (choice?.message as any)?.reasoning
+      || ''
     return {
-      content: response.choices[0]?.message?.content || '',
+      content,
       usage: response.usage ? { input_tokens: response.usage.prompt_tokens, output_tokens: response.usage.completion_tokens } : undefined,
     }
   }