[yunze7373]

Fix three standalone Skill failures: malformed successful HTTP responses now exit nonzero; Cloud Skill detail reads propagate component errors instead of returning a successful empty list; ledger amount filters reject non-finite values and reversed ranges before network access. Release candidate: XMemo Skill 1.1.48. CLI version and pins are unchanged.

Validation:

• Focused Cloud Skill and error-boundary tests: 24/24 passed.
• npm run lint and package build/dry-run passed.
• Full local suite: 750 passed, 1 skipped, 1 failed. The failure is the unchanged CLI pin gate: pin 1.1.45 is older than existing skill-v1.1.47. The test and every imported release-check source are unchanged from base; isolated rerun reproduces it.
• Live read-only smoke: 13 passed, 9 write operations skipped, 2 ledger reads denied by the existing credential's missing ledger_read scope. These are not counted as passing live ledger validation.
• Live Cloud Skill list and show passed, including an empty component array.
• Review policy adapter returned not_required for this human task under reviewer_only; this is not a Reviewer approval.

New regression coverage checks empty/non-JSON 2xx bodies, HTTP auth/server error classes, component failures and invalid shapes in terminal/JSON modes, zero-request rejection of invalid ledger filters, and successful decimal/zero filter serialization.