Track "creation type" for each registry

[dmjb]

This adds a field to the DB (and a field to the status file) which
tracks whether a registry was created through the API or through the
config file. The code for initialization sets the type to config for
now, and ensures that the initialization process does not touch any
registries created through the API.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 50.31056% with 80 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.76%. Comparing base (0149b0b) to head (c1c1429).

Files with missing lines	Patch %	Lines
database/testcontainers.go	0.00%	25 Missing ⚠️
internal/sync/state/db.go	0.00%	21 Missing ⚠️
internal/db/sqlc/models.go	26.31%	14 Missing ⚠️
internal/sync/state/file.go	76.00%	8 Missing and 4 partials ⚠️
internal/db/sqlc/registry.sql.go	79.41%	4 Missing and 3 partials ⚠️
internal/app/builder.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #281      +/-   ##
==========================================
+ Coverage   61.66%   61.76%   +0.10%     
==========================================
  Files          69       69              
  Lines        5882     6023     +141     
==========================================
+ Hits         3627     3720      +93     
- Misses       2012     2050      +38     
- Partials      243      253      +10     

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[rdimitrov]

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