spd support cnc cache

[luomingmeng]

What type of PR is this?

Features

What this PR does / why we need it:

To minimize high query-per-second (QPS) rates from agents to the API server, we implement a Custom Node Config (CNC) to store Service Profile Descriptor (SPD) information needed by the node, acting as an SPD cache. Agents periodically fetch the CNC, and will only attempt to update the local SPD cache from the API server if there's a mismatch between the hash of the local cache's SPD and the SPD information in the CNC.

[codecov]

Codecov Report

Attention: Patch coverage is 62.81690% with 132 lines in your changes are missing coverage. Please review.

Project coverage is 55.59%. Comparing base (b122f7b) to head (3129c92).
Report is 23 commits behind head on main.

Files	Patch %	Lines
pkg/controller/spd/cnc.go	66.23%	50 Missing and 28 partials ⚠️
pkg/util/spd.go	32.25%	16 Missing and 5 partials ⚠️
pkg/util/native/pod_finder.go	59.09%	5 Missing and 4 partials ⚠️
pkg/controller/spd/spd.go	70.37%	4 Missing and 4 partials ⚠️
pkg/metaserver/spd/cache.go	46.15%	4 Missing and 3 partials ⚠️
cmd/katalyst-controller/app/options/spd.go	50.00%	2 Missing ⚠️
pkg/controller/kcc/cnc.go	77.77%	1 Missing and 1 partial ⚠️
pkg/metaserver/spd/fetcher.go	33.33%	1 Missing and 1 partial ⚠️
...lifecycle/agent-healthz/handler/handler_generic.go	0.00%	1 Missing ⚠️
...ller/lifecycle/agent-healthz/healthz_controller.go	0.00%	0 Missing and 1 partial ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #542      +/-   ##
==========================================
- Coverage   55.67%   55.59%   -0.09%     
==========================================
  Files         552      512      -40     
  Lines       59419    47448   -11971     
==========================================
- Hits        33083    26378    -6705     
+ Misses      22899    17731    -5168     
+ Partials     3437     3339      -98     

Flag	Coverage Δ
unittest	55.59% <62.81%> (-0.09%)	⬇️

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