feat(sn60): add Dexterity104-20260723-05

[Dexterity104]

Adds one miner bundle for the sn60__bitsec miner lane.

[carlos4s]

I closed this PR because it failed the pre-scoring execution screener.

Your PR passed intake earlier, but before scoring I run the candidate once on a real benchmark project to make sure it can execute and return valid report JSON.

Screener project: code4rena_cabal-liquid-staking-token_2025_05

Reason:

• SN60 screening execution did not complete successfully: sealed-room run rejected: room run failed: room HTTP 500: {"error":"no immutable image digest configured for project 'code4rena_cabal-liquid-staking-token_2025_05'; set KATA_SN60_TEE_IMAGE_DIGESTS_JSON","where":"Traceback (most recent call last):\n File "/app/room/server.py", line 132, in run\n return _run(raw)\n ^^^^^^^^^\n File "/app/room/server.py", line 190, in _run\n result = PROFILE.run(\n ^^^^^^^^^^^^\n File "/a
• SN60 screening report must be a JSON object.

This candidate did not reach the challenge scoring, so this is marked kata:invalid rather than kata:losing.