feat: re-profile 40 emulators, harden CI workflows

profile emulators pd777 through tic80, add frozen snapshots
(puae2021, snes9x2002/2005/2010, stella2014/2023).

CI: replace github-script with gh CLI, add test execution,
job-level permissions, propagate changed output, pin jsonschema.

emulators/snes9x2005_plus.yml

@@ -0,0 +1,26 @@
+emulator: Snes9x 2005 Plus
+type: libretro
+core_classification: frozen_snapshot
+source: "https://github.com/libretro/snes9x2005"
+upstream: "https://github.com/ShadauxCat/CATSFC"
+profiled_date: "2026-03-25"
+core_version: "v1.36"
+display_name: "Nintendo - SNES / SFC (Snes9x 2005 Plus)"
+cores:
+  - snes9x2005_plus
+systems:
+  - snes
+  - sufami-turbo
+  - satellaview
+
+notes: |
+  Same codebase as Snes9x 2005 built with USE_BLARGG_APU=1 for more accurate audio.
+  Frozen snapshot of Snes9x 1.43 via CATSFC (NDS/PSP port by ShadauxCat/Nebuleon).
+  SPC700 IPL ROM (64 bytes) embedded in apu_blargg.c:3272 as APUROM[64].
+  DSP-1 ROM data (1024 x uint16) embedded in dsp1emu.c:8 as DSP1ROM[1024].
+  All coprocessors (DSP-1/2/4, CX4, ST010/011/018, SuperFX, SPC7110, SA-1, OBC-1)
+  are pure HLE. The core never calls GET_SYSTEM_DIRECTORY and performs no file I/O
+  from the system directory.
+
+exclusion_note: "all coprocessor ROMs embedded in binary; no system_directory access"
+files: []