fix(client): address PR #1115 review feedback

[Copilot]

Applies review feedback on #1115 — the .rdp merge/startup sizing PR.

Changes

• xtask/src/cov.rs: Revert --no-cfg-coverage additions (unintended change)

• rdp.rs:295: Restore debug!(?connection_result) — the PR had replaced it with a plain string, losing structured debug output of the connection result

• config.rs: Remove all debug! calls from Config::parse_from() and its helpers — the logger is not initialized at parse time (parse_from runs before setup_logging() in main()), making every call a silent no-op. Also removes the now-unnecessary SUPPORTED_RDP_PROPERTIES, SENSITIVE_RDP_PROPERTIES, redacted_rdp_line, and related helpers that existed solely for this dead logging. Simplifies helper signatures (rdp_u16_property, rdp_u32_property) and audiomode/KDC proxy handling.

• Tests: Move ironrdp-client/tests/config_rdp_merge.rs → ironrdp-testsuite-extra/tests/rdp_client_config.rs

  • Drops the misleading _merge suffix
  • Adds RAII TempRdpFile (Drop-based cleanup, safe on panic)
  • Adds desktop dimension parsing tests (desktopwidth/desktopheight/desktopscalefactor) including out-of-range fallback behavior
  • Removes uuid from ironrdp-client regular deps (was only used by the test)

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