Issue 90: wire in discover_svc_id to HomeBlk's Superblk and its recovery

[yamingk]

Changes:

Wire in discover_svc_id api, on first time boot ,HB will save the svc_id implemented by HB consumer (BM) and persists in its superblock.
on recovery boot, HB will call discover_svc_id with recovered svc_id to BM.

Testing

First time boot
[05/13/25 15:11:41-07:00] [I] [test_volume] [151351] [homeblks_impl.cpp:189:init_homestore] We are starting for the first time on [1587a414-4268-4ad1-ae34-cff4910d923b]. Formatting HomeStore.

Recovery boot
[05/13/25 15:11:54-07:00] [I] [test_volume] [151351] [homeblks_impl.cpp:263:on_hb_meta_blk_found] HomeBlks superblock loaded, boot_cnt: 1, svc_id: 1587a414-4268-4ad1-ae34-cff4910d923b

[szmyd]

Looks great, thanks!

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 83.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 65.00%. Comparing base (0b40663) to head (e07b8c2).
Report is 15 commits behind head on main.

Files with missing lines	Patch %	Lines
src/lib/homeblks_impl.cpp	75.00%	2 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #91      +/-   ##
==========================================
+ Coverage   61.68%   65.00%   +3.32%     
==========================================
  Files          15       15              
  Lines         462      523      +61     
  Branches       35       43       +8     
==========================================
+ Hits          285      340      +55     
- Misses        158      162       +4     
- Partials       19       21       +2     

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