fix(concerto-linter): lint reserved system concept declarations

[Rishabh060105]

Closes #1216

Adds a default Concerto linter rule that reports declaration names colliding with reserved system concepts in the risky compatibility contexts called out in the issue. Normal v4 linting stays silent, while legacy/v3 models and dangerous-mode v4 runs now surface actionable errors earlier.

Changes

• Add a new reserved-system-concept-declarations default-ruleset rule for Concept, Asset, Transaction, Participant, and Event, including support for legacy/v3 detection and dangerous-mode v4 linting.
• Extend lintModel to accept dangerouslyAllowReservedSystemTypeNamesInUserModels, inject that flag into the loaded ruleset, update docs, and add unit/integration coverage for the new behavior and the no-reserved-keywords regression path.

Flags

• Normal v4 behavior is unchanged: this rule only reports for legacy/v3 models or when dangerouslyAllowReservedSystemTypeNamesInUserModels is enabled.
• no-reserved-keywords no longer catches capitalized system concept names generically, so those names are now handled by the new targeted rule instead.

Screenshots or Video

N/A

Related Issues

• Issue feat(concerto-linter): rule to flag system concept declarations in v3 and when dangerous opt-out is enabled in v4 #1216
• Pull Request fix(concerto-core): add opt-out for reserved system type name clashes #1215

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from Rishabh060105:issue-1216-reserved-system-concept-lint

[Rishabh060105]

Hi @mttrbrts , I’ve implemented the linter follow-up for this.

What changed:

• Added a new default linter rule, reserved-system-concept-declarations, to flag declaration names that collide with reserved system concepts:
  • Concept
  • Asset
  • Transaction
  • Participant
  • Event
• The rule reports in:
  • legacy / v3 model contexts
  • v4 only when dangerouslyAllowReservedSystemTypeNamesInUserModels is enabled
• Normal v4 linting remains unchanged and stays silent.

A couple of related updates were needed as part of this:

• Extended lintModel so it can accept dangerouslyAllowReservedSystemTypeNamesInUserModels and pass that into the loaded ruleset.
• Adjusted no-reserved-keywords so capitalized system concept names are no longer caught by the generic keyword rule; they are now handled by the new targeted rule instead.
• Added docs and test coverage for:
  • v3 / legacy invalid cases
  • dangerous-mode v4 invalid cases
  • normal v4 valid cases
  • regression coverage around no-reserved-keywords

This keeps #1215 as the core behavior change, and makes #1216 the linter-side early warning on top of it.

[Copilot]

Pull request overview

Adds a compatibility-aware default linter rule to catch user declarations that collide with reserved Concerto system concept names, surfacing actionable violations for legacy/v3 models and for v4 runs when the “dangerous” reserved-type-name opt-out is enabled.

Changes:

• Introduces a new default-ruleset rule reserved-system-concept-declarations (with fixtures + tests) to flag declarations named Concept, Asset, Transaction, Participant, Event in legacy/v3, and in v4 when the dangerous flag is enabled.
• Extends lintModel to accept dangerouslyAllowReservedSystemTypeNamesInUserModels and injects that flag into the loaded Spectral ruleset.
• Updates documentation and adjusts no-reserved-keywords behavior/tests so capitalized system concept names are handled by the new targeted rule.

Reviewed changes

Copilot reviewed 16 out of 17 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/concerto-linter/src/index.ts	Adds dangerous-mode option to lintModel and patches ruleset to pass the flag into the reserved-system rule.
packages/concerto-linter/test/unit/lintModel.test.ts	Unit tests for silent v4 behavior, dangerous-mode reporting, and custom-ruleset injection.
packages/concerto-linter/README.md	Documents compatibility-aware linting via dangerouslyAllowReservedSystemTypeNamesInUserModels.
packages/concerto-linter/default-ruleset/src/ruleset-main.ts	Registers the new reserved-system-concept-declarations rule in the default ruleset.
packages/concerto-linter/default-ruleset/src/reserved-system-concept-declarations.ts	Defines the new rule entry (given/severity/then).
packages/concerto-linter/default-ruleset/src/functions/find-reserved-system-concept-declarations.ts	Implements the rule function (legacy/v3 detection + dangerous-mode gating).
packages/concerto-linter/default-ruleset/src/no-reserved-keywords.ts	Adjusts reserved keyword regex to stop catching capitalized system concept names generically.
packages/concerto-linter/default-ruleset/test/rules/reserved-system-concept-declarations.test.ts	Adds rule-level tests for v3/legacy/v4 and dangerous-mode behavior.
packages/concerto-linter/default-ruleset/test/rules/no-reserved-keywords.test.ts	Adds regression coverage ensuring system concepts aren’t reported by the generic keyword rule.
packages/concerto-linter/default-ruleset/test/fixtures/reserved-system-concept-declarations-v4-valid.cto	Valid v4 fixture.
packages/concerto-linter/default-ruleset/test/fixtures/reserved-system-concept-declarations-v4-invalid.cto	Invalid v4 fixture (reserved declarations).
packages/concerto-linter/default-ruleset/test/fixtures/reserved-system-concept-declarations-v3-invalid.cto	Invalid v3 fixture (reserved declarations).
packages/concerto-linter/default-ruleset/test/fixtures/reserved-system-concept-declarations-legacy-invalid.cto	Invalid legacy fixture (missing namespace version).
packages/concerto-linter/default-ruleset/test/fixtures/no-reserved-keywords-system-concepts-valid.cto	Fixture ensuring the keyword rule doesn’t flag system concept names.
packages/concerto-linter/default-ruleset/README.md	Documents the new rule and its compatibility-dependent behavior.
packages/concerto-linter/default-ruleset/package.json	Adds semver dependency for parsing concerto version metadata.
package-lock.json	Lockfile update for the new semver dependency.