Added chunking logic to modules and added corresponding regression tests

internal/framework/runner/runner_test.go

@@ -101,6 +101,56 @@ func TestRunnerModulesRunSequentially(t *testing.T) {
 	}
 }
 
+func TestRunnerProposalsExecutePerChunkSection(t *testing.T) {
+	cfg := config.Default()
+	cfg.MaxSectionTokens = 3
+	cfg.MinSectionTokens = 0
+
+	transcript := &schema.Transcript{Segments: []schema.Segment{
+		{ID: 1, Text: "one two"},
+		{ID: 2, Text: "three four"},
+		{ID: 3, Text: "five six"},
+	}}
+
+	seenSections := make([]contracts.SectionMetadata, 0)
+	seenSegmentCounts := make([]int, 0)
+	r := New(fakeFactory{modules: map[string]contracts.TranscriptModule{
+		"m": fakeModule{key: "m", policy: proposals.ReplacementPolicyRequireUnique, proposeF: func(req contracts.ProposalRequest) ([]proposals.CorrectionProposal, error) {
+			if req.Section == nil {
+				t.Fatalf("expected section metadata on proposal request")
+			}
+			seenSections = append(seenSections, *req.Section)
+			seenSegmentCounts = append(seenSegmentCounts, len(req.WorkingTranscript.Segments))
+			return nil, nil
+		}},
+	}})
+
+	out, err := r.Run(context.Background(), RunInput{
+		Config:     &cfg,
+		Transcript: transcript,
+		ModuleSpecs: []contracts.ModuleRunSpec{
+			{ModuleKey: "m", InstanceName: "m"},
+		},
+	})
+	if err != nil {
+		t.Fatalf("Run error: %v", err)
+	}
+	if len(out.ModuleResults) != 1 {
+		t.Fatalf("expected one module result, got %+v", out.ModuleResults)
+	}
+	if len(seenSections) != 3 {
+		t.Fatalf("expected 3 chunked proposal calls, got %d", len(seenSections))
+	}
+	for i, section := range seenSections {
+		if section.Index != i {
+			t.Fatalf("expected section index %d, got %+v", i, section)
+		}
+		if seenSegmentCounts[i] != 1 {
+			t.Fatalf("expected one segment per section call, got %d at index %d", seenSegmentCounts[i], i)
+		}
+	}
+}
+
 func TestRunnerSkippedRecorded(t *testing.T) {
 	transcript := &schema.Transcript{Segments: []schema.Segment{{ID: 1, Speaker: "A", Start: 0, End: 1, Text: "word word"}}}
 	r := New(fakeFactory{modules: map[string]contracts.TranscriptModule{