feat(schema): add scalable catalog feed projections

[giodl73-repo]

Summary

• add strict wire schemas for official catalog query results, change pages, and reset-required responses
• normalize bounded filters deterministically and validate page, cursor, range, expiry, identity, and metadata invariants
• preserve blocked entries as upserts and represent removals as typed tombstones

Boundaries

• no route handlers, signing, cursor issuance, durable storage, sharding, or OpenClaw consumer changes
• the next ClawHub slice adds durable revisions/change state and bounded internal reads; transport and signing follow separately

Dependency

• scalable distribution RFC update: RFC 0009: align Hosted Feed v1 specifications rfcs#39

Validation

• bun x vitest run packages/schema/src/catalogFeedDistribution.test.ts packages/schema/src/catalogFeed.test.ts (12 tests)
• bun x tsc -p packages/schema/tsconfig.json --noEmit
• targeted lint and format checks
• git diff --cached --check
• autoreview findings addressed for composite identities, bounded metadata, cursor/page invariants, calendar timestamps, and terminal delta completeness; one final compiler finding rejected because the cited option is not enabled and the package typecheck passes

Behavior proof

The package test harness parses valid query/change/reset documents and rejects malformed filters, pagination, sequence coverage, URLs, timestamps, oversized fields, and duplicate typed identities.

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[clawsweeper]

ClawSweeper status: review started.

I am starting a fresh review of this pull request: feat(schema): add scalable catalog feed projections This is item 1/1 in the current shard. Shard 0/1.

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[giodl73-repo]

Superseded by #3149, which now combines the scalable catalog wire schemas with their durable revision/change-history model as one internal distribution-state foundation.