Fix Discussions category name: cicd -> ci-cd (#207) (#224)

The first post-merge nightly failed the release-post-comment workflow with:
  Discussion category 'cicd' not found.
  Available: Announcements, ci-cd, General, Ideas, Polls, Q&A, Show and tell

The repository's category is named "ci-cd", not "cicd". Update the default
category name (workflow_dispatch input default, the env default, and the
script fallback) and the changelog wording accordingly. The lookup remains
case-insensitive by name (no hard-coded category id).

Note: This work was completed with AI assistance (Claude Code).

Author: oberstet

.github/workflows/release-post-comment.yml

@@ -13,7 +13,7 @@ on:
         description: "GitHub Discussions category name to post into (case-insensitive)"
         required: false
         type: string
-        default: "cicd"
+        default: "ci-cd"
 
 permissions:
   contents: read # Required for reading releases
@@ -149,14 +149,14 @@ jobs:
       - name: Post to GitHub Discussions
         uses: actions/github-script@v7
         env:
-          DISCUSSION_CATEGORY: ${{ github.event.inputs.discussion_category || 'cicd' }}
+          DISCUSSION_CATEGORY: ${{ github.event.inputs.discussion_category || 'ci-cd' }}
         with:
           script: |
             const fs = require('fs');
             const body = fs.readFileSync('discussion-post.md', 'utf8');
             const releaseName = process.env.RELEASE_NAME;
             const title = `Release ${releaseName}`;
-            const wantCategory = (process.env.DISCUSSION_CATEGORY || 'cicd').toLowerCase();
+            const wantCategory = (process.env.DISCUSSION_CATEGORY || 'ci-cd').toLowerCase();
 
             // Resolve the repository node id and the target discussion category id
             // by (case-insensitive) name, so we never hard-code a repo-specific

docs/changelog.rst

@@ -18,7 +18,7 @@ This document contains a reverse-chronological list of changes to txaio.
 **Other**
 
 * Preserve verified artifact chain-of-custody in the release pipeline, aligning txaio with the rest of the WAMP group. The wheel, source distribution and documentation are now built **once** in the ``main`` workflow and uploaded with ``upload-artifact-verified``; the ``release`` workflow ``download-artifact-verified``\s those exact, checksum-verified artifacts (by ``main`` run id) and publishes them, instead of rebuilding from source. This guarantees that what is tested is what is shipped (`#207 <https://github.com/crossbario/txaio/issues/207>`_)
-* Auto-publish a GitHub Discussions announcement for nightly and stable releases: a new ``release-post-comment.yml`` workflow runs after the ``release`` workflow, finds the freshly-created GitHub Release and posts its notes into the Discussions ``cicd`` category. The category is resolved by name (case-insensitive), so no repo-specific category id is hard-coded. Requires GitHub Discussions enabled on the repository with a ``cicd`` category (`#207 <https://github.com/crossbario/txaio/issues/207>`_)
+* Auto-publish a GitHub Discussions announcement for nightly and stable releases: a new ``release-post-comment.yml`` workflow runs after the ``release`` workflow, finds the freshly-created GitHub Release and posts its notes into the Discussions ``ci-cd`` category. The category is resolved by name (case-insensitive), so no repo-specific category id is hard-coded. Requires GitHub Discussions enabled on the repository with a ``ci-cd`` category (`#207 <https://github.com/crossbario/txaio/issues/207>`_)
 * Align artifact handling with the rest of the WAMP group: CI now uploads build, coverage and documentation artifacts via the shared ``upload-artifact-verified`` action (SHA256 chain-of-custody), and the release workflow validates the exact PyPI payload — the universal ``py3-none-any`` wheel plus the source distribution — with the shared, fail-closed ``check-release-fileset`` action before publishing (`#212 <https://github.com/crossbario/txaio/issues/212>`_)
 * Remove three permanently-skipped legacy tests that exercised the ``@asyncio.coroutine`` decorator. That decorator was removed in Python 3.11 (txaio's minimum supported version), so the tests could no longer run on any supported interpreter and only emitted skips (`#152 <https://github.com/crossbario/txaio/issues/152>`_)
 * Bumped the shared ``wamp-ai`` and ``wamp-cicd`` Git submodules to match the rest of the WAMP project group (zlmdb / autobahn-python 26.6.1) for the coordinated release. The ``wamp-cicd`` bump picks up the GHSA-6658 shell-injection hardening in the shared ``identifiers.yml`` reusable workflow (untrusted GitHub event fields are now passed via ``env:`` as quoted data with a fail-closed branch-name allowlist) (`#218 <https://github.com/crossbario/txaio/issues/218>`_)