Remove nightly schedule trigger and run CI on main

[davidkrauser]

Implements @hanzei's suggestion in #247.

• Remove the daily schedule trigger, which causes GitHub to disable the entire workflow (including pull_request checks) after 60 days of inactivity in derived repos.
• Extend the push branch list to master, main, so repos created from this template with a main default branch get post-merge CI.

🤖 Generated with Claude Code

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 97fb3ce6-9cba-4de7-91d6-ab8c776bd405

📥 Commits

Reviewing files that changed from the base of the PR and between e1f9f88 and 1b44058.

📒 Files selected for processing (1)

• .github/workflows/ci.yml

---

📝 Walkthrough

Walkthrough

The CI workflow no longer runs on a daily schedule. Pushes to both master and main now trigger CI.

Changes

CI trigger updates

Layer / File(s)	Summary
Workflow trigger configuration .github/workflows/ci.yml	The workflow removes the scheduled cron trigger and adds main to the push branch filters while retaining master.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related issues

• Issue #247: The workflow changes remove the daily schedule trigger and add main alongside master, matching the issue objectives.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the removal of the nightly schedule and the addition of CI for the main branch.
Description check	✅ Passed	The description accurately explains the workflow changes and their purpose for derived repositories.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dk-drop-schedule-trigger

---

_{Comment @coderabbitai help to get the list of available commands.}

[hanzei]

Nice one 👍