feat: link each changelog entry to its PR and commit

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

cliff.toml

@@ -24,7 +24,8 @@ Hello world 👋
 {% for group, commits in commits | group_by(attribute="group") %}
 ### {{ group | striptags | trim }}
 {% for commit in commits %}
-- {% if commit.breaking %}**Breaking:** {% endif %}{{ commit.message | split(pat="\n") | first | upper_first | trim }}\
+- {% if commit.breaking %}**Breaking:** {% endif %}{{ commit.message | split(pat="\n") | first | upper_first | trim }} \
+([{{ commit.id | truncate(length=7, end="") }}](https://git.kebcloud.no/keb/lazysecrets/commit/{{ commit.id }}))\
 {% endfor %}
 {% endfor %}\n
 """
@@ -33,6 +34,8 @@ trim = true
 # Runs on each part (header, every release) separately.
 postprocessors = [
   { pattern = "\n{3,}", replace = "\n\n" },
+  # Squash commits end in the PR's number: link it.
+  { pattern = "\\(#([0-9]+)\\)", replace = "([#${1}](https://git.kebcloud.no/keb/lazysecrets/pulls/${1}))" },
 ]
 
 [git]