TCXB7-7251: Fix marker loss on in-place log truncation

[tabbas651]

Log upload backs up and truncates monitored files (e.g. wifihealth.txt, PARODUSlog.txt) in place without always producing a rotated .1 file. The stored seek value from the previous collection cycle then points past the truncated file's new size. getFileDeltaInMemMapAndSearch() previously treated this the same as an unrecoverable rotation with no backup and returned NULL, silently dropping every marker sourced from that file for one report cycle (e.g. Total_5G_clients_split, SYS_INFO_LowQosEvntUpload).

Add a truncated check (seek_value > sb.st_size) and, when no rotated file is available, read the entire current file from offset 0 instead of skipping the collection, so markers are captured in the same cycle immediately following log upload.

[github-actions]

Code Coverage Summary

                                         |Lines       |Functions  |Branches    
Filename                                  |Rate     Num|Rate    Num|Rate     Num
================================================================================
[/mnt/L1_CONTAINER_SHARED_VOLUME/source/]
bulkdata/datamodel.c                      |72.5%    218|88.9%     9|    -      0
bulkdata/profile.c                        |27.0%   1130|73.5%    34|    -      0
bulkdata/profilexconf.c                   |48.3%    528|85.0%    20|    -      0
bulkdata/reportprofiles.c                 |57.5%    586| 100%    27|    -      0
bulkdata/t2eventreceiver.c                |64.1%    301| 100%    10|    -      0
bulkdata/t2markers.c                      |80.5%    169|83.3%    12|    -      0
ccspinterface/busInterface.c              |86.8%     53|85.7%     7|    -      0
ccspinterface/rbusInterface.c             |74.3%    946|97.2%    36|    -      0
commonlib/telemetry_busmessage_sender.c   |40.4%    396|84.2%    19|    -      0
dcautil/dca.c                             |72.8%    684| 100%    20|    -      0
dcautil/dcaproc.c                         |84.3%    230| 100%     7|    -      0
dcautil/dcautil.c                         |78.9%    185| 100%     6|    -      0
dcautil/legacyutils.c                     |79.0%    105| 100%     7|    -      0
privacycontrol/rdkservices_privacyutils.c | 100%     11| 100%     2|    -      0
protocol/http/curlinterface.c             | 100%     24| 100%     3|    -      0
protocol/http/multicurlinterface.c        |59.7%    375|80.0%    10|    -      0
protocol/rbusMethod/rbusmethodinterface.c |60.0%    105|50.0%     6|    -      0
reportgen/reportgen.c                     |55.7%    924| 100%    21|    -      0
scheduler/scheduler.c                     |70.2%    413| 100%    13|    -      0
t2parser/t2parser.c                       |59.4%   1939|88.5%    26|    -      0
t2parser/t2parserxconf.c                  |89.7%    195| 100%     3|    -      0
utils/persistence.c                       |78.7%    253| 100%    10|    -      0
utils/t2MtlsUtils.c                       |82.6%     46|75.0%     4|    -      0
utils/t2collection.c                      |89.6%    201| 100%    18|    -      0
utils/t2common.c                          |63.8%    185|73.3%    15|    -      0
utils/t2log_wrapper.c                     |69.2%     26|50.0%     2|    -      0
utils/vector.c                            |94.9%     79| 100%     8|    -      0
================================================================================
                                   Total:|61.1%  10307|90.4%   355|    -      0