fix(cli): stack pfs elements --family is repeatable (refs #684)

Claude-Session: https://claude.ai/code/session_01Aum3pEMAM3yQVdFSdVe6Gc

src/cli/pfs.py

@@ -76,16 +76,19 @@ def _run_elements(
         typer.echo(f"{c}: {len(x.rows)} elements, {len(x.reviews)} for review")
 
 
-def _codes_for(con: Any, codes: list[str], family: str, all_payable: bool) -> list[str]:
+def _codes_for(
+    con: Any, codes: list[str], families: list[str], all_payable: bool
+) -> list[str]:
     out: list[str] = [c.upper() for c in codes]
-    if family:
+    if families:
         refresh_from(con)
-        fam = FAMILIES.get(family.upper())
-        if fam is None:
-            raise typer.BadParameter(
-                f"unknown family {family!r}; known: {', '.join(FAMILIES)}"
-            )
-        out.extend(fam.codes)
+        for family in families:
+            fam = FAMILIES.get(family.upper())
+            if fam is None:
+                raise typer.BadParameter(
+                    f"unknown family {family!r}; known: {', '.join(FAMILIES)}"
+                )
+            out.extend(fam.codes)
     if all_payable:
         rows = con.execute(
             "SELECT DISTINCT hcpcs FROM pfs.rvu WHERE status_code IN ('A','R','T') "
@@ -100,7 +103,9 @@ def _codes_for(con: Any, codes: list[str], family: str, all_payable: bool) -> li
 @app.command()
 def elements(
     code: list[str] = typer.Option([], "--code", help="HCPCS/CPT code (repeatable)."),
-    family: str = typer.Option("", help="Expand a registered family (CCM, APCM, …)."),
+    family: list[str] = typer.Option(
+        [], "--family", help="Expand a registered family (CCM, APCM, …); repeatable."
+    ),
     all_payable: bool = typer.Option(
         False, "--all-payable", help="Every A/R/T code in the newest RVU year."
     ),

tests/cli/test_pfs_cli.py

@@ -157,6 +157,37 @@ class TestElements:
         )
         assert res.exit_code == 0 and seen == ["99490"]
 
+    def test_repeated_family_option_expands_every_family(self, con, monkeypatch):
+        # #684 regression: --family used to be a single str, so a second
+        # --family silently discarded the first. It must now be repeatable
+        # and expand every family named.
+        seen = []
+        monkeypatch.setattr(
+            pfs_cli,
+            "extract_code",
+            lambda s, c, code, *, classify=None: (
+                seen.append(code) or Extraction(code, (), ())
+            ),
+        )
+        res = runner.invoke(
+            app,
+            [
+                "pfs",
+                "elements",
+                "--family",
+                "CCM",
+                "--family",
+                "APCM",
+                "--no-llm",
+                "--dry-run",
+            ],
+        )
+        assert res.exit_code == 0, res.output
+        from pfs.families import HAND_FAMILIES
+
+        expected = set(HAND_FAMILIES["CCM"].codes) | set(HAND_FAMILIES["APCM"].codes)
+        assert set(seen) == expected
+
 
 class TestLineage:
     def test_prints_and_writes(self, con, monkeypatch):