playground-ng: Initial commit

[breezewish]

What problem does this PR solve?

close #xxx

What is changed and how it works?

Playground-ng is a complete refactor of playground, providing same functionality, but:

• Iterate faster, agents driven
• More user and agents friendly

Start the playground locally to see what's the improvements:

Major features:

• More user friendly TUI
• More log friendly output
• Existing feature is reserved and compatible, including scale-in and scale-out.

Major refactors:

• Clear separation of components and services

  Components: tidb, tikv, pd, etc (a component can be download from tiup registry)
  Services: pd-tso, pd-api, tikv, tikv-worker, tiflash-wn, etc

• Better race condition prevention: one event handling goroutine for all

• Service catalogs to define behaviors

• Better process lifecycle management

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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Details

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• OWNERS

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 55.46024% with 3271 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.45%. Comparing base (ed0fab6) to head (f1acdba).

Files with missing lines	Patch %	Lines
components/playground-ng/service/dm.go	17.30%	153 Missing ⚠️
components/playground-ng/start.go	54.24%	117 Missing and 34 partials ⚠️
components/playground-ng/boot.go	66.51%	80 Missing and 59 partials ⚠️
components/playground-ng/main.go	69.82%	98 Missing and 36 partials ⚠️
components/playground-ng/command.go	63.61%	76 Missing and 47 partials ⚠️
components/playground-ng/service/binlog.go	18.37%	120 Missing ⚠️
components/playground-ng/artifacts.go	52.44%	87 Missing and 30 partials ⚠️
components/playground-ng/controller.go	60.00%	80 Missing and 32 partials ⚠️
components/playground-ng/service/service.go	54.20%	88 Missing and 21 partials ⚠️
components/playground-ng/proc/dm.go	4.46%	105 Missing and 2 partials ⚠️
... and 65 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2662      +/-   ##
==========================================
+ Coverage   38.51%   41.45%   +2.94%     
==========================================
  Files         360      417      +57     
  Lines       37499    46013    +8514     
==========================================
+ Hits        14439    19072    +4633     
- Misses      21257    24357    +3100     
- Partials     1803     2584     +781     

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