git commit -m "feat(update): add --silent mode with continue-on-failure and unified summary

- Introduce --silent flag for install/update to downgrade per-repo errors to warnings
- Continue processing remaining repositories on pull/install failures
- Emit a single summary at the end (suppress per-repo summaries during update)
- Preserve interactive verification behavior when not silent
- Add integration test covering silent vs non-silent update behavior
- Update e2e tests to use --silent for stability"

https://chatgpt.com/share/693ffcca-f680-800f-9f95-9d8c52a9a678

tests/integration/test_update_silent_continues.py

@@ -0,0 +1,110 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from __future__ import annotations
+
+import unittest
+from unittest.mock import patch
+
+from pkgmgr.actions.update.manager import UpdateManager
+
+
+class TestUpdateSilentContinues(unittest.TestCase):
+    def test_update_continues_on_failures_and_silent_controls_exit_code(self) -> None:
+        """
+        Integration test for UpdateManager:
+          - pull failure on repo A should not stop repo B/C
+          - install failure on repo B should not stop repo C
+          - without silent -> SystemExit(1) at end if any failures
+          - with silent -> no SystemExit even if there are failures
+        """
+
+        repos = [
+            {"provider": "github", "account": "example", "repository": "repo-a"},
+            {"provider": "github", "account": "example", "repository": "repo-b"},
+            {"provider": "github", "account": "example", "repository": "repo-c"},
+        ]
+
+        # We patch the internal calls used by UpdateManager:
+        # - pull_with_verification is called once per repo
+        # - install_repos is called once per repo that successfully pulled
+        #
+        # We simulate:
+        #   repo-a: pull fails
+        #   repo-b: pull ok, install fails
+        #   repo-c: pull ok, install ok
+        pull_calls = []
+        install_calls = []
+
+        def pull_side_effect(selected_repos, *_args, **_kwargs):
+            # selected_repos is a list with exactly one repo in our implementation.
+            repo = selected_repos[0]
+            pull_calls.append(repo["repository"])
+            if repo["repository"] == "repo-a":
+                raise SystemExit(2)
+            return None
+
+        def install_side_effect(selected_repos, *_args, **kwargs):
+            repo = selected_repos[0]
+            install_calls.append((repo["repository"], kwargs.get("silent"), kwargs.get("emit_summary")))
+            if repo["repository"] == "repo-b":
+                raise SystemExit(3)
+            return None
+
+        # Patch at the exact import locations used inside UpdateManager.run()
+        with patch("pkgmgr.actions.repository.pull.pull_with_verification", side_effect=pull_side_effect), patch(
+            "pkgmgr.actions.install.install_repos", side_effect=install_side_effect
+        ):
+            # 1) silent=True: should NOT raise (even though failures happened)
+            UpdateManager().run(
+                selected_repos=repos,
+                repositories_base_dir="/tmp/repos",
+                bin_dir="/tmp/bin",
+                all_repos=repos,
+                no_verification=True,
+                system_update=False,
+                preview=True,
+                quiet=True,
+                update_dependencies=False,
+                clone_mode="shallow",
+                silent=True,
+                force_update=True,
+            )
+
+            # Ensure it tried all pulls, and installs happened for B and C only.
+            self.assertEqual(pull_calls, ["repo-a", "repo-b", "repo-c"])
+            self.assertEqual([r for r, _silent, _emit in install_calls], ["repo-b", "repo-c"])
+
+            # Ensure UpdateManager suppressed install summary spam by passing emit_summary=False.
+            for _repo_name, _silent, emit_summary in install_calls:
+                self.assertFalse(emit_summary)
+
+            # Reset tracking for the non-silent run
+            pull_calls.clear()
+            install_calls.clear()
+
+            # 2) silent=False: should raise SystemExit(1) at end due to failures
+            with self.assertRaises(SystemExit) as cm:
+                UpdateManager().run(
+                    selected_repos=repos,
+                    repositories_base_dir="/tmp/repos",
+                    bin_dir="/tmp/bin",
+                    all_repos=repos,
+                    no_verification=True,
+                    system_update=False,
+                    preview=True,
+                    quiet=True,
+                    update_dependencies=False,
+                    clone_mode="shallow",
+                    silent=False,
+                    force_update=True,
+                )
+            self.assertEqual(cm.exception.code, 1)
+
+            # Still must have processed all repos (continue-on-failure behavior).
+            self.assertEqual(pull_calls, ["repo-a", "repo-b", "repo-c"])
+            self.assertEqual([r for r, _silent, _emit in install_calls], ["repo-b", "repo-c"])
+
+
+if __name__ == "__main__":
+    unittest.main()