enhance: add intent ctx to rootcoord init

[tinswzy]

issue: #38439
cherry pick "enhance: add intent ctx to rootcoord init"

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: tinswzy
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• internal/rootcoord/OWNERS
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[codecov]

Codecov Report

Attention: Patch coverage is 89.47368% with 6 lines in your changes missing coverage. Please review.

Project coverage is 81.07%. Comparing base (4533fc8) to head (097c48e).
Report is 5 commits behind head on 2.5.

Files with missing lines	Patch %	Lines
internal/rootcoord/root_coord.go	79.31%	1 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.5   #38948      +/-   ##
==========================================
- Coverage   81.12%   81.07%   -0.06%     
==========================================
  Files        1383     1383              
  Lines      195517   195528      +11     
==========================================
- Hits       158619   158523      -96     
- Misses      31355    31443      +88     
- Partials     5543     5562      +19     

Components	Coverage Δ
Client	78.26% <ø> (ø)
Core	69.45% <ø> (ø)
Go	83.05% <89.47%> (-0.07%)	⬇️

Files with missing lines	Coverage Δ
internal/rootcoord/dml_channels.go	96.66% <100.00%> (+0.03%)	⬆️
internal/rootcoord/timeticksync.go	84.92% <100.00%> (-1.59%)	⬇️
pkg/log/global.go	100.00% <100.00%> (ø)
pkg/mq/msgstream/common_mq_factory.go	57.14% <100.00%> (ø)
pkg/mq/msgstream/mq_msgstream.go	79.26% <100.00%> (ø)
internal/rootcoord/root_coord.go	88.10% <79.31%> (+<0.01%)	⬆️

... and 31 files with indirect coverage changes

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