fix: quote rom and core names in yaml

YAML 1.1 reads an unquoted 01 as the integer 1 and 81 as 81, so the
manager set stopped naming the file its driver opens and the API
published "cores": [2048] as a number where consumers match strings.

Ground truth from MAME 0.289 at the revision the profile cites:
src/mame/vtech/crvision.cpp:957 loads "01" and "23".

The root cause was the scraper: _hash_merge wrote these names through an
f-string, so quoting the profiles alone would be undone on the next
refresh. _yaml_scalar now quotes every name, archive and description it
writes.

platforms/targets/retrobat.yml

@@ -4,7 +4,7 @@ scraped_at: "2026-03-26T00:00:00Z"
 targets:
   windows:
     architecture: x86_64
-    cores: [81, a5200, abuse, arduous, atari800, azahar, bennugd, bk, bluemsx, bsnes,
+    cores: ['81', a5200, abuse, arduous, atari800, azahar, bennugd, bk, bluemsx, bsnes,
       bstone, cannonball, cap32, catacombgl, cdogs, cemu, cgenius, citron, clk, corsixth,
       demul, devilutionx, dhewm3, dice, dolphin, dosbox_pure, dxx-rebirth, easyrpg,
       ecwolf, eduke32, eka2l1, emuscv, etlegacy, fake08, fallout1-ce, fallout2-ce,