[NotReeceHarris]

This pull request introduces an optional reputation ("rep") system for the forum, allowing users to earn reputation for activity and enabling topics to require a minimum rep to post. The system is implemented via a deterministic, idempotent GitHub Actions workflow that maintains a rep ledger and enforces topic restrictions. The SPA displays rep badges and gates topics client-side, while the workflow enforces rules on posts made directly on github.com. The changes include configuration, workflow, UI updates, and a pure TypeScript rep engine.

Reputation system core implementation:

• Added a pure TypeScript rep engine (src/lib/rep/engine.ts) that computes user reputation from forum activity, applies daily caps, and determines enforcement for rep-gated topics. This engine is used both by the SPA and the GitHub Actions workflow.
• Introduced a new GitHub Actions workflow (.github/workflows/rep.yml) and entrypoint script (.github/scripts/rep-action.ts) to recompute the rep ledger on every discussion/comment event and enforce rep-gated topics by moving, locking, or deleting violating posts. [1] [2]

Configuration and schema:

• Extended the forum config and schema to support the rep system, including all options (gains, caps, topic gates, enforcement actions, exemptions, and data branch), and provided defaults. [1] [2] [3]
• Updated documentation in README.md to describe the rep system, its configuration, and workflow. [1] [2]

UI and display:

• Updated UserBadges.svelte to display a user's rep badge alongside other badges, using the new rep system. [1] [2]
• Added SPA-side code (src/lib/rep/ledger.ts) to fetch the rep ledger from the rep-data branch for display and client-side gating.

Dependency and tooling:

• Added the tsx package to devDependencies for running the workflow script.

[github-actions]

🧪 Test coverage

File                           Stmts %  Branch %  Funcs %  Lines %
-----------------------------  -------  --------  -------  -------
oauth-proxy/worker.js              100       100      100      100
src/lib/cache.ts                   100       100      100      100
src/lib/config/index.ts            100       100      100      100
src/lib/config/schema.ts           100       100      100      100
src/lib/github/api.ts              100       100      100      100
src/lib/github/auth.svelte.ts      100       100      100      100
src/lib/rep/engine.ts              100       100      100      100
src/lib/rep/ledger.ts              100       100      100      100
src/lib/ui.svelte.ts               100       100      100      100
src/lib/utils.ts                   100       100      100      100
TOTAL                              100       100      100      100