fix(ci): run every documented example falsifier in smoke

[TMHSDigital]

Closes #362.

What changed

• Catalog: tests/smoke/catalog.json gains 19 falsifiers on 10 existing rows. These are every non-render falsifier the example READMEs documented but no job ran. The rows' falsifiers lists already supported several entries, so no new key or cron job is needed. They run on every smoke leg, which also satisfies "at least weekly".

  Row	Added (expected exit)
  cross-version-property-delete	--unset-instead (7)
  gn-zone-iterate	--no-offset (4), --unpair-foreach (5), --foreach-main (5)
  gn-sim-fountain	--euler (4), --prebake-trap (5), --calc-to-frame (6)
  gn-bundle-roundtrip	--mismatch (3), --bypass (4), --mismatch-mark (5)
  exit-pre-sidecar	--no-handler, --silent-handler, --wrong-text, --write-in-main (sidecar must fail)
  ngon-triangulate / unapplied-scale-gltf / coincident-vert-weld	--skip-triangulate / --bake / --weld (4)
  usd-export-evaluation-mode	--evaluation-mode VIEWPORT (4)
  gn-modifier-inputs	--api dict (5; min_version 5.2)

• READMEs: the 10 "Smoke does not pass …" sentences now name these as catalog falsifiers. check_smoke_catalog rejected every stale one until it was fixed. Gallery pages are regenerated.

• ROADMAP: removed the item that deferred this decision.

• Left out of smoke on purpose:

  • render-path diagnostics: --falsify (writes a PNG), --close-camera, --probe;
  • path and mode switches: --force-run, --obj, --api rna.

Evidence

Live run: tests/smoke/run_catalog.py over a 10-row subset catalog, on local binaries:

Binary reports	PASS	SKIP	FAIL
Blender 5.2.1 LTS	40	0	0
Blender 5.1.2	39	1 (--api dict, from 5.2)	0
Blender 4.5.11 LTS	27	13 (bundle rows < 5.0, exit_pre < 5.1, --api dict, --subscript-registered)	0

• --api dict on 5.1.2: run directly, it exits 0 (api=dict blender=(5, 1, 2), gn-modifier-inputs OK). That is why it has min_version 5.2, and the README says so.
• Local checks: check_smoke_catalog.py and check_exit_code_readme.py pass.

🤖 Generated with Claude Code

[TMHSDigital]

CI evidence before merge: all checks pass ( 13 pass ). Blender Smoke on PR head: Blender 5.2.2 LTS / Blender 4.5.14 LTS. Summaries (happy path; falsifiers) per leg: 143 passed, 1 skipped, 0 failed;162 passed, 0 skipped, 0 failed;141 passed, 3 skipped, 0 failed;147 passed, 15 skipped, 0 failed;