feat: Phase 2 complete — 13 Phases of COBOL type classification and test benchmark

P0.6: gcov infrastructure
P1: extract_structure output expansion (11 new feature fields)
P2: Confusion group rule engine (8 pairs + contradiction + backtrack)
P3: 4-factor confidence calculation + quality gate update
P4: 33+2 COBOL program type test samples (22 files, 7 categories)
P5: parametrized/ test data generation engine
P6: japanese_data.py lookup tables
P7-10: Type-specific test suites (~159 parametrized tests)
P11: Full classification pipeline (classify_program) + orchestrator integration
P12: Documentation (module-interfaces, test-plan v3.0, coverage-matrix)

Architecture decisions:
- classification_pipeline/ merged to hina/pipeline/
- parametrized/ as independent module
- japanese_data.py as root-level file
- hina/__all__ only exports classify_program()

Co-Authored-By: Claude <noreply@anthropic.com>

tests/test_jcl.py

@@ -0,0 +1,97 @@
+"""JC-01~08: JCL 解析 + 执行"""
+
+import sys, os, tempfile
+from pathlib import Path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+from jcl.parser import parse_jcl, CondParam, JobStep, Job, DDEntry
+
+
+def _write_jcl(content):
+    tmp = tempfile.NamedTemporaryFile(mode="w", suffix=".jcl", delete=False, encoding="utf-8")
+    tmp.write(content)
+    tmp.close()
+    return tmp.name
+
+
+def test_parse_jcl_basic():
+    """JC-01: JOB + 2 STEP"""
+    path = _write_jcl("//JobA  JOB (1),'TEST'\n//STEP1  EXEC PGM=PGM1\n//STEP2  EXEC PGM=PGM2")
+    try:
+        job = parse_jcl(path)
+        assert job is not None
+        assert len(job.steps) == 2
+    finally:
+        os.unlink(path)
+
+
+def test_parse_jcl_cond():
+    """JC-02: COND 参数"""
+    path = _write_jcl("//J JOB\n//S EXEC PGM=P,COND=(0,NE)")
+    try:
+        job = parse_jcl(path)
+        assert job is not None
+    finally:
+        os.unlink(path)
+
+
+def test_parse_jcl_dd():
+    """JC-03: DD 语句"""
+    path = _write_jcl("//J JOB\n//S EXEC PGM=P\n//DD1 DD DSN=MY.DATA,DISP=SHR")
+    try:
+        job = parse_jcl(path)
+        assert job is not None
+    finally:
+        os.unlink(path)
+
+
+def test_parse_jcl_comment():
+    """JC-06: 注释行跳过"""
+    path = _write_jcl("//J JOB\n//* THIS IS COMMENT\n//S EXEC PGM=P")
+    try:
+        job = parse_jcl(path)
+        assert job is not None
+        assert len(job.steps) == 1
+    finally:
+        os.unlink(path)
+
+
+def test_parse_jcl_continuation():
+    """JC-04: 续行"""
+    path = _write_jcl("//J JOB\n//S EXEC PGM=P\n//DD1 DD DSN=A,\n//  DISP=SHR")
+    try:
+        job = parse_jcl(path)
+        assert job is not None
+    finally:
+        os.unlink(path)
+
+
+def test_parse_jcl_empty():
+    """JC-05: 空文件"""
+    path = _write_jcl("")
+    try:
+        assert parse_jcl(path) is None
+    finally:
+        os.unlink(path)
+
+
+def test_parse_jcl_not_found():
+    """JC-07: 文件不存在 → FileNotFoundError"""
+    p = os.path.join(tempfile.gettempdir(), "_unlikely_jcl_test_99_.jcl")
+    import pytest
+    with pytest.raises(FileNotFoundError):
+        parse_jcl(p)
+
+
+def test_cond_param():
+    c = CondParam(code=0, operator="NE")
+    assert c.code == 0
+
+
+def test_job_step():
+    s = JobStep("S1", "PGM1")
+    assert s.step_name == "S1"
+
+
+def test_job():
+    j = Job("TESTJOB")
+    assert j.job_name == "TESTJOB"