refactor: remove bootstrap wrappers and split into config/service/installers

- Replace bootstrap wrapper with config-driven service orchestration
- Introduce Config dataclass for centralized env/CLI validation
- Add MatomoApi service for session login + app token creation
- Move Playwright installer into installers/web and drop old install package
- Refactor HttpClient to unify HTTP handling and debug to stderr
- Make E2E tests use sys.executable instead of hardcoded python3

src/matomo_bootstrap/config.py

@@ -0,0 +1,65 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+import os
+
+
+@dataclass(frozen=True)
+class Config:
+    base_url: str
+    admin_user: str
+    admin_password: str
+    admin_email: str
+    token_description: str = "matomo-bootstrap"
+    timeout: int = 20
+    debug: bool = False
+    matomo_container_name: str | None = None  # optional, for future console installer usage
+
+
+def config_from_env_and_args(args) -> Config:
+    """
+    Build a Config object from CLI args (preferred) and environment variables (fallback).
+    """
+    base_url = getattr(args, "base_url", None) or os.environ.get("MATOMO_URL")
+    admin_user = getattr(args, "admin_user", None) or os.environ.get("MATOMO_ADMIN_USER")
+    admin_password = getattr(args, "admin_password", None) or os.environ.get("MATOMO_ADMIN_PASSWORD")
+    admin_email = getattr(args, "admin_email", None) or os.environ.get("MATOMO_ADMIN_EMAIL")
+
+    token_description = (
+        getattr(args, "token_description", None)
+        or os.environ.get("MATOMO_TOKEN_DESCRIPTION")
+        or "matomo-bootstrap"
+    )
+
+    timeout = int(getattr(args, "timeout", None) or os.environ.get("MATOMO_TIMEOUT") or "20")
+    debug = bool(getattr(args, "debug", False))
+
+    matomo_container_name = (
+        getattr(args, "matomo_container_name", None)
+        or os.environ.get("MATOMO_CONTAINER_NAME")
+        or None
+    )
+
+    missing: list[str] = []
+    if not base_url:
+        missing.append("--base-url (or MATOMO_URL)")
+    if not admin_user:
+        missing.append("--admin-user (or MATOMO_ADMIN_USER)")
+    if not admin_password:
+        missing.append("--admin-password (or MATOMO_ADMIN_PASSWORD)")
+    if not admin_email:
+        missing.append("--admin-email (or MATOMO_ADMIN_EMAIL)")
+
+    if missing:
+        raise ValueError("missing required values: " + ", ".join(missing))
+
+    return Config(
+        base_url=str(base_url),
+        admin_user=str(admin_user),
+        admin_password=str(admin_password),
+        admin_email=str(admin_email),
+        token_description=str(token_description),
+        timeout=timeout,
+        debug=debug,
+        matomo_container_name=matomo_container_name,
+    )