Cleanup pass to remove refactoring-related artifacts and references

internal/modules/grammar/module.go

@@ -41,7 +41,7 @@ func New() (*Module, error) {
 func (m *Module) Key() string { return "grammar" }
 
 func (m *Module) ReplacementPolicy() proposals.ReplacementPolicy {
-	// Python grammar module uses require_unique for conservative single-span replacement.
+	// Conservative single-span replacement.
 	return proposals.ReplacementPolicyRequireUnique
 }
 

internal/modules/grammar/prompt.go

@@ -22,8 +22,8 @@ type promptTranscriptSection struct {
 	Segments     []promptSegment `json:"segments"`
 }
 
-// BuildProposalMessages mirrors the Python grammar-module prompt intent:
-// punctuation/capitalization/spacing cleanup only, with strict meaning guards.
+// BuildProposalMessages constrains corrections to punctuation/capitalization/
+// spacing cleanup with strict meaning guards.
 func BuildProposalMessages(transcript *schema.Transcript, glossary *schema.Glossary, sectionIndex int) ([]contracts.LLMMessage, error) {
 	glossaryJSON, err := json.MarshalIndent(glossary, "", "  ")
 	if err != nil {