feat: add session_cookie_domain and session_cookie_path to ory_project_config

[KT-Doan]

Description

Adds two new optional attributes to the ory_project_config resource:

• session_cookie_domain — Sets the domain for session cookies, enabling cookie sharing across subdomains (e.g., .example.com)
• session_cookie_path — Sets the path for session cookies (e.g., /)

These map to the Ory Kratos config at /services/identity/config/session/cookie/domain and /services/identity/config/session/cookie/path.

Related Issues

Fixes #76

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

Checklist

• I have read the CONTRIBUTING guide
• My code follows the existing code style
• I have added tests that prove my fix/feature works
• I have updated documentation as needed
• All new and existing tests pass (make test)
• I have run the linter (make format)

Testing

Describe how you tested these changes:

• Unit tests
• Acceptance tests — TestAccProjectConfigResource_sessionCookie with create + update steps
• Manual testing — plan, apply, re-plan (no drift), update, destroy against staging API

Screenshots/Output

N/A — all changes are backend resource attributes with no UI component.

[Copilot]

Pull request overview

Adds support in the Terraform ory_project_config resource for configuring Ory Kratos session cookie domain and path, enabling cross-subdomain session sharing and path scoping, with accompanying docs and acceptance coverage.

Changes:

• Add optional session_cookie_domain and session_cookie_path attributes to the ory_project_config resource schema/model and map them to the corresponding Kratos config JSON patch paths.
• Extend project config read/refresh logic to track these attributes for drift detection when configured.
• Add acceptance test coverage plus documentation and example updates.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
internal/resources/projectconfig/resource.go	Adds new schema/model fields and wires them into patch building + state refresh from API config.
internal/resources/projectconfig/resource_test.go	Adds an acceptance test covering create + update for the new session cookie attributes.
internal/resources/projectconfig/testdata/session_cookie.tf.tmpl	Acceptance test config template for initial create step.
internal/resources/projectconfig/testdata/session_cookie_updated.tf.tmpl	Acceptance test config template for update step.
docs/resources/project_config.md	Updates generated resource docs with new attributes and example usage.
templates/resources/project_config.md.tmpl	Updates the docs template to include the new session cookie settings in the category overview.
examples/resources/ory_project_config/resource.tf	Updates example configuration to demonstrate the new attributes.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.