feat: initial commit — unarr CLI

Search, inspect, stream, and download torrents from the terminal.
Replaces the entire *arr stack with a single binary.

.lefthook/commit-msg/validate.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+# Validate commit message follows Conventional Commits format.
+# Allowed types: feat, fix, docs, test, chore, refactor, ci, style, perf, build
+#
+# Valid examples:
+#   feat: add search by genre
+#   fix(client): handle nil response
+#   docs: update README
+#   feat!: breaking change in API
+
+commit_msg_file="$1"
+commit_msg=$(head -1 "$commit_msg_file")
+
+# Allow merge commits
+if echo "$commit_msg" | grep -qE '^Merge '; then
+  exit 0
+fi
+
+# Conventional Commits regex:
+#   type(optional-scope)optional-!: description
+pattern='^(feat|fix|docs|test|chore|refactor|ci|style|perf|build)(\([a-zA-Z0-9_-]+\))?!?: .+'
+
+if ! echo "$commit_msg" | grep -qE "$pattern"; then
+  echo "ERROR: Commit message does not follow Conventional Commits format."
+  echo ""
+  echo "  Expected: <type>[optional scope]: <description>"
+  echo ""
+  echo "  Allowed types: feat, fix, docs, test, chore, refactor, ci, style, perf, build"
+  echo ""
+  echo "  Examples:"
+  echo "    feat: add search by genre"
+  echo "    fix(client): handle nil response body"
+  echo "    docs: update API reference"
+  echo ""
+  echo "  Your message: $commit_msg"
+  exit 1
+fi