fix(kyberforge): address independent review of #154

Quote the template description so the raw scaffold is valid YAML, reject
newline-containing names in new-instructions.sh, correct the empty-compile
facts (exit 1, --clean exits 0), and finish removing commit steps from the
skill-author, agent-author and forge references. Adds regression tests.

Refs #148

Co-Authored-By: Claude Code <[email protected]>
Claude-Session: https://claude.ai/code/session_01KkT7RSDwDbmrM9T34b6sTi

plugins/kyberforge/.apm/skills/instructions-author/tests/new-instructions.bats

@@ -21,7 +21,7 @@ make_package() {
 fill() {
     sed -i -E \
         -e '/^#/{/^# FILL IN/!d}' \
-        -e 's/^description: FILL IN.*/description: Python style rules/' \
+        -e 's/^description: .?FILL IN.*/description: Python style rules/' \
         -e 's/^applyTo: .*/applyTo: "**\/*.py"/' \
         -e 's/^# FILL IN.*/# Python style/' \
         -e 's/^- FILL IN.*/- Use type hints./' \
@@ -217,3 +217,21 @@ need_apm() {
     assert_output --partial "Missing 'description'"
     assert_output --partial "Empty content"
 }
+
+@test "rejects a name containing a newline" {
+    make_package
+    run bash "$SCRIPT" $'my-rule\nextra' "$ROOT"
+    assert_failure
+    assert_output --partial "lowercase letters"
+    assert [ ! -d "$ROOT/.apm" ]
+}
+
+@test "the raw scaffold is valid YAML and compiles with no parse warnings" {
+    need_apm
+    make_package
+    run bash "$SCRIPT" my-rule "$ROOT"
+    assert_success
+    cd "$ROOT"
+    run apm compile --dry-run --target claude
+    refute_output --partial "Failed to parse"
+}