feat(components/db): add common events store (similar to components.Event)

[gyuho]

Replace #327.

Cherry-picked from #321.

[codecov]

Codecov Report

Attention: Patch coverage is 75.44910% with 82 lines in your changes missing coverage. Please review.

Project coverage is 21.86%. Comparing base (789b4fa) to head (ab4f4ea).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
components/db/events.go	82.29%	36 Missing and 18 partials ⚠️
pkg/sqlite/sqlite.go	0.00%	26 Missing ⚠️
components/info/component.go	0.00%	1 Missing ⚠️
internal/server/server.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #332      +/-   ##
==========================================
+ Coverage   21.22%   21.86%   +0.63%     
==========================================
  Files         298      299       +1     
  Lines       26776    27081     +305     
==========================================
+ Hits         5684     5920     +236     
- Misses      20424    20480      +56     
- Partials      668      681      +13     

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