fix(tests): ensure test isolation in server mode (#3737)

Propagate test IDs from client to server via HTTP headers to maintain
proper test isolation when running with server-based stack configs.
Without
this, recorded/replayed inference requests in server mode would leak
across
tests.

Changes:
- Patch client _prepare_request to inject test ID into provider data
header
- Sync test context from provider data on server side before storage
operations
- Set LLAMA_STACK_TEST_STACK_CONFIG_TYPE env var based on stack config
- Configure console width for cleaner log output in CI
- Add SQLITE_STORE_DIR temp directory for test data isolation

llama_stack/log.py

@@ -133,7 +133,10 @@ def strip_rich_markup(text):
 
 class CustomRichHandler(RichHandler):
     def __init__(self, *args, **kwargs):
-        kwargs["console"] = Console()
+        # Set a reasonable default width for console output, especially when redirected to files
+        console_width = int(os.environ.get("LLAMA_STACK_LOG_WIDTH", "120"))
+        # Don't force terminal codes to avoid ANSI escape codes in log files
+        kwargs["console"] = Console(width=console_width)
         super().__init__(*args, **kwargs)
 
     def emit(self, record):