Summarise how your releases are really going

**Objective:** Summarize the recent release and deployment history of `{release-definition-name}` in project `{project}` (all if empty).

**Step 1: Resolve the definition**

Call `azure-devops-get-release-definition` with name.contains `{release-definition-name}`. If more than one matches, list them and stop.

**Step 2: Read releases**

Call `azure-devops-get-release` with definition-id for the matched definition and take the latest 20, noting status, reason, created-by and created-on.

**Step 3: Read deployments**

Call `azure-devops-get-deployment` with release-definition-id. Group by environment-name and note deployment-status, operation-status, requested-for and the time between queued-on and completed-on.

**Step 4: Report**

A per-environment table of last deployment, result, success rate over the runs seen and median duration, followed by the latest release and anything stuck, partially succeeded or failed.

**Rules & Guidelines:**

* This prompt is read-only. Call only the `azure-devops-get-*` read tools named above; never create, update, comment on, approve, queue, abort or delete anything in Azure DevOps.
* The tools only return data the connected account can see; never infer data from projects outside that access.
* Do not infer approvals or gate details; they are not in these tools.

**Validation:**

* If no releases exist for the definition, say so and stop.
* Report the number of releases and deployments actually examined.