Add slug to namespace projects

[Knerio]

close #777

[github-actions]

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Link to pipeline: https://gitlab.com/code0-tech/development/sagittarius/-/pipelines/2218652311

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Duration: 5 minutes

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rspec: [ee]

Coverage report available at https://code0-tech.gitlab.io/-/development/sagittarius/-/jobs/12461495003/artifacts/tmp/coverage/index.html
Test summary available at https://gitlab.com/code0-tech/development/sagittarius/-/pipelines/2218652311/test_report
Finished in 21.78 seconds (files took 10.62 seconds to load)
1305 examples, 0 failures
Line Coverage: 91.59% (4432 / 4839)
[TEST PROF INFO] Time spent in factories: 00:11.676 (41.98% of total time)

rspec: [ce]

Coverage report available at https://code0-tech.gitlab.io/-/development/sagittarius/-/jobs/12461494993/artifacts/tmp/coverage/index.html
Test summary available at https://gitlab.com/code0-tech/development/sagittarius/-/pipelines/2218652311/test_report
Finished in 20.78 seconds (files took 13.01 seconds to load)
1258 examples, 0 failures
Line Coverage: 91.03% (4264 / 4684)
[TEST PROF INFO] Time spent in factories: 00:11.430 (41.16% of total time)

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723 files inspected, no offenses detected

[Copilot]

Pull request overview

This PR adds a slug field to namespace projects to support URL-based identification of flows, particularly for HTTP flows. The slug is used as a URL path component to identify and route to project flows.

• Adds a required slug column to the namespace_projects table with uniqueness constraint
• Implements automatic slug generation with collision handling when not explicitly provided
• Exposes slug via GraphQL API for both creation and updates
• Updates HTTP flow URL generation to include project slug as a path prefix

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
db/migrate/20251215200029_add_slug_to_projects.rb	Adds slug column and unique index to namespace_projects table
db/structure.sql	Updates schema to reflect slug column addition
db/schema_migrations/20251215200029	Migration checksum for tracking
db/fixtures/development/06_namespace_projects.rb	Adds slug to development fixture data
app/models/namespace_project.rb	Adds slug validations (presence, uniqueness, format, length)
app/models/flow.rb	Updates to_grpc method to prepend project slug to HTTP flow URLs
app/services/namespaces/projects/create_service.rb	Implements automatic slug generation with collision retry logic
app/graphql/types/namespace_project_type.rb	Exposes slug field in GraphQL type
app/graphql/mutations/namespaces/projects/create.rb	Adds optional slug argument to create mutation
app/graphql/mutations/namespaces/projects/update.rb	Adds optional slug argument to update mutation
spec/models/namespace_project_spec.rb	Adds validation specs for slug field
spec/factories/namespace_projects.rb	Updates factory to auto-generate slug from name
spec/services/namespaces/projects/create_service_spec.rb	Adds tests for slug generation and collision handling
spec/requests/graphql/mutation/namespace/projects/create_mutation_spec.rb	Updates audit event expectations to include slug
spec/graphql/types/namespace_project_type_spec.rb	Adds slug to expected GraphQL fields
spec/models/flow_spec.rb	Updates flow tests to verify slug inclusion in HTTP URLs

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[Taucher2003]

While it doesn't make a big difference, we can also define the index directly in add_column (not native rails, added by ZeroTrack)

Also, we should add the limit on database level as well.

Suggested change

	add_column :namespace_projects, :slug, :text, null: false
	add_index :namespace_projects, :slug, unique: true
	add_column :namespace_projects, :slug, :text, null: false, unique: true, limit: 50