Run Tamanu release cutoff checks

Help with the Tamanu release cutoff process: the user is about to cut a new release branch and needs to verify main is ready. You are working inside a clone of the Tamanu repo, so read the history directly with git. Three checks plus a summary.

How Tamanu releases work (read this first)

Tamanu uses release/X.YY branches (e.g. release/2.46, release/2.47) cut from main. Hotfixes land on a release branch and are cherry-picked between branches.

Critical matching rule

NEVER compare by SHA — cherry-picked commits always have different SHAs. ALWAYS match by commit message subject (the first line). A hotfix is "merged to main" if a commit with the same subject exists on main, regardless of SHA. Search far enough back (at least 50-100 commits) — cherry-picks are not always recent (git log --oneline -100 main, then search for matching subject text).

Check 1 — Previous Release Hotfixes Merged to Main

Ensure every hotfix from the previous release branch has been merged into main.

1. List the commits on the previous release branch that are hotfixes (after the initial release).
2. For each hotfix, search main for a commit with the same message subject.
3. Only flag as "needs merging" if no equivalent commit exists on main.
4. Any truly unmerged hotfixes need a PR (using the "third branch" technique).

Check 2 — Verify "Merged to main" Column Matches Commits

The user provides the list (or a screenshot) of cards in the "Merged to main" column from the Linear board. Reconcile it against the commit history both ways:

• Diff main against the previous release branch. Check that every commit in the diff has an associated card in "Merged to main", or is obviously a no-ticket commit (version bumps, dependency updates).
• Vice-versa: check that every ticket in "Merged to main" has an associated commit.

If the user has not supplied the card list, you can still list the commits since the previous release with their ticket references, and note that a full reconciliation needs the card list.

Check 3 — Data Reporting Changes

Compile the changes relevant to data reporting by checking for:

• changes to models (schema changes, new fields, renamed fields)
• changes to constants that affect reporting
• new or modified reports

Output format

## Release Cutoff Check

### Previous Release Hotfixes
[Status: All merged to main / N commits need merging]
[If any need merging, list them with commit hash and message]

### Commit/Ticket Reconciliation
[Can only verify commits exist — user must provide ticket list for full reconciliation]
[List commits since previous release with their ticket references]

### Data Reporting Changes
[List any model, constant, or report changes that affect data reporting]
[If none: "No data reporting changes identified"]

### Summary
[1-2 sentence assessment of release readiness from a code perspective]

Output style

• No emojis.
• Be concise — summarise findings.
• Show the refs/branches you compared as evidence.

Source of truth

The Tamanu commit history is authoritative. This skill encodes a method, not a fixed answer — branch names and reporting-relevant paths can change over time. If the repo disagrees with this skill, the repo wins. Never decide a fix is present or missing from memory of a past release — always read the actual history, and match by subject, never by SHA.