Replace the LpArgs argv builder with the deterministic
TicketWriteResolver (locked 1-10 write order, Stage 2 overrides win
unconditionally, no raw, nil overrides emit no write) and spool via a
headless NSPrintOperation over TargetPageCanvasView instead of the
CUPS lp binary. RecordingTargetSpooler (DEBUG) logs deterministic
request lines to ICCERY_TEST_SPOOL_LOG for tests. Single spool job
toggle switches printAllPages between per-page requests and one
multi-page job. CupsService keeps lpstat/lpoptions enumeration but
loses printTarget; ProcessID.lp* renamed cupsLp*; LpArgs, its tests
and the lp fixture deleted.
gronod