Add acquisition automation modes with repeat target skip logic

- Add acqmode command to control acquisition automation (modes 1-3)
- Mode 1: legacy manual mode (wait for user at each step)
- Mode 2: semi-automatic (start acquisition, wait for user to expose)
- Mode 3: fully automatic (apply offsets automatically)
- Add repeat target detection to skip unnecessary slew/acquisition
- Add configuration parameters for acquisition automation
- Skip acquisition when re-observing same coordinates (modes 2-3)

Based on PR #391 acquisition automation features
Applied to DH/sequencer-calib-work branch (observatory baseline)

Author: cfremling

Config/sequencerd.cfg.in

@@ -160,6 +160,10 @@ ACQUIRE_RETRYS=5                     # max number of retrys before acquisition f
 ACQUIRE_OFFSET_THRESHOLD=0.5         # computed offset below this threshold (in arcsec) defines successful acquisition
 ACQUIRE_MIN_REPEAT=2                 # minimum number of sequential successful acquires
 ACQUIRE_TCS_MAX_OFFSET=60            # the maximum allowable offset sent to the TCS, in arcsec
+ACQ_AUTOMATIC_MODE=1                 # 1=legacy, 2=semi-auto, 3=auto
+ACQ_FINE_TUNE_CMD=ngps_acq           # command to run after guiding for final fine tune
+ACQ_FINE_TUNE_XTERM=0                # run fine tune in xterm (0/1)
+ACQ_OFFSET_SETTLE=0                  # seconds to wait after automatic offset
 
 # Calibration Settings
 # CAL_TARGET=(name caldoor calcover U G R I lampthar lampfear lampbluc lampredc lolamp hilamp mod1 mod2 ... mod6)

common/sequencerd_commands.h

@@ -8,6 +8,7 @@
 #ifndef SEQEUNCERD_COMMANDS_H
 #define SEQEUNCERD_COMMANDS_H
 const std::string SEQUENCERD_ABORT      = "abort";
+const std::string SEQUENCERD_ACQMODE    = "acqmode";
 const std::string SEQUENCERD_CONFIG     = "config";
 const std::string SEQUENCERD_DOTYPE     = "do";
 const std::string SEQUENCERD_EXIT       = "exit";
@@ -47,6 +48,7 @@ const std::vector<std::string> SEQUENCERD_SYNTAX = {
                                                      SEQUENCERD_TCS+" ...",
                                                      "",
                                                      SEQUENCERD_ABORT,
+                                                     SEQUENCERD_ACQMODE+" [ ? | <mode> ]",
                                                      SEQUENCERD_CONFIG,
                                                      SEQUENCERD_DOTYPE+" [ one | all ]",
                                                      SEQUENCERD_EXIT,