[quantecon-activity-feed]

New entries for quantecon.org/activity, from public QuantEcon activity. The Activity feed wrote them in a run covering 2026-10-25 to 2026-11-01 (run log).

File	New entries
_data/activity/2026-11-01-lectures.yml	2, in a new file
_data/activity/2026-11-01-software.yml	1, in a new file

• 2026-11-01 · lectures · Advanced Quantitative Economics with Python · 1 PR
• 2026-11-01 · lectures · Intermediate Quantitative Economics with Python · 1 PR
• 2026-11-01 · release · jlgametheory v0.4.1

PR-only mode. The feed opens its PRs but doesn't merge them. Review the entries, then merge or close this PR. The feed opens no new Activity PR while this one is open, and its next run re-checks the last 7 days.

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[Copilot]

🟢 Approval recommended

Both new append-only Activity data files pass all schema and convention checks with every required field present, valid types, and no duplicates, leaving no outstanding issues.

No open issues 🎉

What changed in this PR

This PR adds three new Activity feed entries for 2026-11-01, written by the QuantEcon reporter bot for the public Activity log at quantecon.org/activity. It introduces two brand-new, append-only data files (one lectures stream, one software stream), consistent with the repository's Activity data workflow.

Changes:

• Adds _data/activity/2026-11-01-lectures.yml with two lectures entries (Advanced and Intermediate Quantitative Economics with Python), each with a summary and a linked PR.
• Adds _data/activity/2026-11-01-software.yml with one release entry (jlgametheory v0.4.1).

I validated both files against the CI schema in .github/scripts/check-activity-data.rb and the build-time rules in _plugins/activity/rows.rb:

• All required fields (date, type, project, url) are present and well-formed; type values (lectures, release) are in the allowed set.
• The release entry supplies version: v0.4.1 as an unquoted YAML string, matching the existing convention (e.g. 2026-10-13-software.yml).
• Summaries are non-empty strings with no stray/doubled backticks; each changes entry has a string title and a valid GitHub /pull/<n> URL.
• File names follow the <UTC-day>-<stream>.yml convention, both dates (2026-11-01) are not in the future, and the append-only rule is satisfied since both files are new.
• The new release (v0.4.1) and PRs (#401, #1099) are not duplicated by any existing Activity entry.

No issues found, so I have no review comments to add.

File	Description
_data/​activity/​2026-11-01-lectures.yml	New append-only data file with two valid lectures entries, each with a summary and a linked PR change.
_data/​activity/​2026-11-01-software.yml	New append-only data file with one valid release entry for jlgametheory v0.4.1.

_{Review effort: Balanced}