refactor!: remove unused activityWeight definition

[bitbeckers]

BREAKING CHANGE: activityWeight definition has been removed from org.hypercerts.claim.activity lexicon. This definition was not being used anywhere in the codebase.

The activityWeight type (which contained activity strongRef and weight fields) was a leftover from an earlier design and is no longer needed.

Changes:

• Remove activityWeight definition from activity lexicon defs
• Remove activityWeight documentation from README.md
• Add changeset for version bump

Closes #84

Summary by CodeRabbit

• Chores
  • Removed unused activityWeight definition from the activity lexicon schema and updated related documentation.

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[changeset-bot]

🦋 Changeset detected

Latest commit: c2bf781

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

The PR removes the unused activityWeight definition from the Hypercerts activity lexicon schema to reduce complexity. Changes include deletion of the definition from the lexicon file, corresponding documentation updates, and a changelog entry documenting the minor version change.

Changes

Cohort / File(s)	Summary
Schema definition removal lexicons/org/hypercerts/claim/activity.json	Removed the activityWeight object definition from the defs section, eliminating the public entity that previously declared required activity and weight fields.
Documentation cleanup README.md	Removed references to and descriptions of the activityWeight definition from two documentation sections covering the Hypercerts Activity Claim lexicon.
Changelog entry .changeset/remove-activity-weight.md	Added a changeset documenting a minor version bump for the lexicon package with a summary of the activityWeight removal.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Possibly related issues

• remove activityWeight from activity claim #84 — Directly addresses the removal of the same unused activityWeight definition from the Hypercerts activity claim schema and documentation.

Possibly related PRs

• Remove collection weight sum constraint #44 — Modifies the activityWeight definition's weight description, whereas this PR removes the entire definition entirely.
• adding project schema (and keeping collections consistent) #33 — Previously introduced the activityWeight definition that this PR now removes.

Suggested reviewers

• aspiers
• holkexyz
• s-adamantine

Poem

🐰 A weight once carried by activities dear,
Now gently removed—no longer needed here,
The schema grows lighter, more clean and refined,
Unused definitions left far behind! ✨

🚥 Pre-merge checks | ✅ 5

✅ 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 'refactor!: remove unused activityWeight definition' directly and clearly describes the main change—removing an unused definition from the activity lexicon, matching the core objective of the PR.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Lexicon Documentation Sync	✅ Passed	PR successfully maintains synchronization between JSON lexicons, README documentation, and ERD.puml with activityWeight completely removed from all locations.
Lexicons Styleguide Compliance	✅ Passed	The lexicon file maintains valid JSON schema structure with all required ATProto fields (type, id, defs, revision) and follows repository naming conventions.

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[aspiers]

Superseded by #102.