propers: Benedictus antiphons for March's sanctoral entries (5/6)

4 authored fresh (Lucius I, Thomas Aquinas, the Forty Holy Martyrs,
Gregory the Great), 1 corrected (Joseph -- confirmed sourced from the
Roman rite's raw [Ant 1] rather than a real Monastic 1617 rendering,
same pattern as January/February's corrections).

Gregory the Great's antiphon (the "non Angli sed Angeli" episode) had
no English in the source at all -- translated fresh, marked draft.

St. Frances of Rome left honestly missing: Simplex rank, and her day
(March 9) falls within Lent in every year tested 2026-2035, so she can
never win outright under this app's own privileged-feria-major rule --
there's no live-rendered antiphon to source, ever, not just this year.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

TODO.md

@@ -116,7 +116,14 @@ saint has the same kind of mismatch.
   St. Valentine, Chair of St. Peter at Antioch, St. Matthias (source's own
   English existed but was jarringly modern next to everything else's
   archaic register — reworded to match, marked `draft`).
-- **March-December (93 saints): not started.**
+- **March (6 total): done, 5 authored/corrected, 1 flagged.** St. Lucius I,
+  St. Thomas Aquinas, the Forty Holy Martyrs, St. Gregory the Great
+  (translated, source had no English — the "non Angli sed Angeli" antiphon),
+  St. Joseph (corrected). St. Frances of Rome left `missing`: Simplex rank,
+  and March 9 always falls within Lent every tested year (2026-2035) — she
+  structurally can never win her own day outright under this app's own
+  calendar rules, so there's no live-rendered antiphon to source at all.
+- **April-December (87 saints): not started.**
 - **~52 temporal entries: not started.**
 - **94 `propers: null` saints: not started** — need a collect authored (a
   bigger, separate task) before an antiphon id even has anywhere to attach.