feat(commit-message): add guidelines for writing commit messages

Add guidelines for writing cohesive and descriptive commit messages.
The guidelines include starting with a short sentence in imperative form,
followed by a more detailed explanation if necessary. The explanation should be
less than 200 characters. Examples of well-written commit messages are also provided.

Author: phodal

src/main/kotlin/cc/unitmesh/devti/actions/vcs/CodeReviewAction.kt

@@ -26,8 +26,6 @@ import com.intellij.vcs.log.VcsLogDataKeys
 import git4idea.repo.GitRepository
 import kotlinx.coroutines.runBlocking
 import org.changelog.CommitParser
-import java.nio.file.FileSystems
-import java.nio.file.PathMatcher
 
 val githubUrlRegex: Regex = Regex("^(https?://|git://)?(www\\.)?github\\.com/[\\w-]+/[\\w-]+(/.*)?\$")
 

src/main/resources/genius/practises/gen-commit-msg.vm

@@ -0,0 +1,17 @@
+Write a cohesive yet descriptive commit message for a given diff.
+Make sure to include both information What was changed and Why.
+Start with a short sentence in imperative form, no more than 50 characters long.
+Then leave an empty line and continue with a more detailed explanation, if necessary.
+Explanation should have less than 200 characters.
+
+examples:
+- fix(authentication): add password regex pattern
+- feat(storage): add new test cases
+- test(java): fix test case for user controller
+
+Diff:
+
+```diff
+${context.diff}
+```
+

src/main/resources/genius/quick/quick-action.system.vm

@@ -2,3 +2,4 @@ Generate a concise code snippet with no extra text, description, or comments.
 
 The code should achieve the following task:
 
+${context.task}