Remove bidirectional project-activity link

[bitbeckers]

• Remove project field from activity lexicon
• Update project description to reflect unidirectional relationship
• Update README documentation to remove project field from activity properties table
• Update ERD diagrams to remove activity->project relationship arrow
• Add changeset for minor version bump

Closes #62

Summary by CodeRabbit

• Chores

  • Added changeset documenting relationship modifications.

• Refactor

  • Simplified the project-activity relationship from bidirectional to unidirectional. Activities no longer maintain direct project references; only projects reference their associated activities.

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[changeset-bot]

🦋 Changeset detected

Latest commit: b51dd76

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hypercerts-org/lexicon	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR removes the bidirectional relationship between projects and activities by eliminating the project field from the Activity lexicon. The relationship is now unidirectional, with projects linking to activities via an activities array, while activities no longer reference their parent project.

Changes

Cohort / File(s)	Summary
Lexicon Schema Definitions lexicons/org/hypercerts/claim/activity.json, lexicons/org/hypercerts/claim/project.json	Removed project property from activity record definition; updated project lexicon description to remove reference to one-project-link constraint
Diagram & Documentation ERD.puml, README.md	Removed activity→project relationship edge and project? field from entity diagram; updated documentation to reflect unidirectional relationship structure
Changeset Metadata .changeset/remove-bidirectional-project-link.md	New minor version changeset documenting the removal of bidirectional project-activity link

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• adding project schema (and keeping collections consistent) #33: This PR directly reverses the changes introduced in PR #33, which originally added the bidirectional activity.project field and the corresponding relationship in the data model.

Suggested reviewers

• aspiers
• s-adamantine
• holkexyz

Poem

🐰 One link was two, now two is one,
The activity hops to projects with sun,
No backward glance from claim to deed,
A cleaner path is all we need! 🌱

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Important

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Lexicon Documentation Sync	❓ Inconclusive	The user requested shell command execution and JSON conversion, but provided no actual verification output or data to analyze.	Unable to process shell commands or access files. Provide actual verification output or data to convert to JSON format.

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: removing the bidirectional link between project and activity in the lexicon, making the relationship unidirectional.
Linked Issues check	✅ Passed	The PR successfully addresses issue #62 by removing the project field from the activity lexicon and updating documentation to reflect the unidirectional project-to-activity relationship.
Out of Scope Changes check	✅ Passed	All changes are directly related to removing the bidirectional project-activity link as specified in issue #62; no unrelated modifications were introduced.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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