Add betterleaks secret scanning

[repowarden-app]

What this adds

• .github/workflows/betterleaks.yml — runs betterleaks on every push and PR so new secrets can't sneak in.
• .betterleaks.toml — extends the betterleaks defaults with an allowlist for the usual false-positive offenders (test env files, GTM/analytics IDs, fixtures, snapshots, .NET test projects).

Betterleaks is the free, open-source successor to gitleaks (built by the same maintainers). The CI step takes a few seconds and fails the build if it finds anything — so this catches mistakes before they hit the default branch.

Existing findings

None — your working tree is clean.

Note: per RepoWarden's policy, this scan only inspects the current working tree, not git history. If you've previously committed secrets, rotate them and consider git filter-repo to scrub history.

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[cloudflare-workers-and-pages]

Deploying joshghent with    Cloudflare Pages

Latest commit:	84264d6
Status:	✅  Deploy successful!
Preview URL:	https://c2f33646.joshghent.pages.dev
Branch Preview URL:	https://repowarden-secret-scanning-1-46u8.joshghent.pages.dev

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I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

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I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

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[repowarden-app]

I've attempted to fix CI 3 times but the checks are still failing. Please review and fix manually.

Failing checks: setup, spellcheck, Validate PR title, Validate PR title

— RepoWarden