refactor: DLO-16/17/18/20 — CLI simplification, config Pydantic, planner split, type system unification

DLO-16: Reduce cli.py from 1073 to 83 lines by registering Click commands from commands/*.py modules
DLO-17: Migrate Config to Pydantic BaseModel for validation
DLO-18: Split planner.py (826 lines) into orchestration, path rendering, and duplicate handling modules
DLO-20: Unify type system — convert 14 dataclasses to Pydantic BaseModel, keep TypedDicts as JSON schema hints

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/vlm/commands/review_plan.py

@@ -15,7 +15,7 @@ from vlm.cli_helpers import (
     resolve_legacy_default_input_path,
     review_plan_tui_streams_ok,
 )
-from vlm.context import CLIContext
+from vlm.context import CLIContext, pass_context
 from vlm.io import load_analysis_json, load_identities_json
 from vlm.plan_render import (
     duplicate_groups_from_plan,
@@ -242,3 +242,60 @@ def apply_review_cmd(
             f"Apply review failed: {e}",
             exc_info=True,
         )
+
+
+@click.command(name="review-plan")
+@click.option("--input", type=click.Path(exists=True, path_type=Path), default=lambda: default_artifact_path("plan.json"))
+@click.option("--output", type=click.Path(path_type=Path), default=lambda: default_artifact_path("plan_manual_review.csv"))
+@click.option("--season-threshold", type=int, default=20, show_default=True)
+@click.option("--episode-threshold", type=int, default=40, show_default=True)
+@click.option("--preview-limit", type=int, default=10, show_default=True)
+@click.option("--show-all", is_flag=True, default=False)
+@click.option("--tui", is_flag=True, default=False)
+@click.option("--identities", type=click.Path(path_type=Path), default=None)
+@click.option("--analysis", type=click.Path(path_type=Path), default=None)
+@click.option("--group-by", type=click.Choice(["none", "reason", "title", "duplicate"], case_sensitive=False), default="none", show_default=True)
+@click.option("--sample-safe", type=int, default=0, show_default=True)
+@click.option("--structure-preview", type=click.Path(path_type=Path), default=None)
+@pass_context
+def review_plan(
+    ctx: CLIContext,
+    input: Path,
+    output: Path,
+    season_threshold: int,
+    episode_threshold: int,
+    preview_limit: int,
+    show_all: bool,
+    tui: bool,
+    identities: Optional[Path],
+    analysis: Optional[Path],
+    group_by: str,
+    sample_safe: int,
+    structure_preview: Optional[Path],
+):
+    """Review a plan and export high-risk operations for manual confirmation."""
+    review_plan_cmd(
+        ctx,
+        input,
+        output,
+        season_threshold,
+        episode_threshold,
+        preview_limit,
+        show_all,
+        tui,
+        identities,
+        analysis,
+        group_by,
+        sample_safe,
+        structure_preview,
+    )
+
+
+@click.command(name="apply-review")
+@click.option("--plan", type=click.Path(exists=True, path_type=Path), default=Path("plan.json"))
+@click.option("--csv", type=click.Path(exists=True, path_type=Path), default=Path("plan_manual_review.csv"))
+@click.option("--output", type=click.Path(path_type=Path), default=None)
+@pass_context
+def apply_review(ctx: CLIContext, plan: Path, csv: Path, output: Optional[Path]):
+    """Apply modifications from a manual review CSV back to the plan JSON."""
+    apply_review_cmd(ctx, plan, csv, output)