docs: drop Homebrew from README until the tap ships

[aptracebloc]

Summary

Removes the Homebrew install option from the README for now — the tap repo (tracebloc/homebrew-tap) isn't set up yet, and Homebrew is deferred past the v0.1 alpha. Keeps the GitHub Release + install.sh/install.ps1 paths.

• Customer experience: dropped the brew install tracebloc/tap/tracebloc line (curl/irm remain).
• Status: "GitHub Release + Homebrew tap + install scripts" → "GitHub Release + install scripts" (+ note the tap is a later follow-up).
• Roadmap (Phase 5): marked the Homebrew tap as deferred.

Docs only — no behavior change. The bump-homebrew-tap job in release.yml was already if: false, so nothing in the pipeline changes.

🤖 Generated with Claude Code

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Note

Low Risk
Documentation-only; no code or release pipeline behavior changes.

Overview
README only — install docs now match v0.1 shipping GitHub Releases + install.sh / install.ps1, not a Homebrew tap yet.

The Status section no longer lists a Homebrew tap in the release pipeline; it notes the tap is a later follow-up. The Customer experience block removes brew install tracebloc/tap/tracebloc and keeps curl (Linux/macOS) and irm (Windows). Roadmap Phase 5 is reworded to mark the Homebrew tap as deferred while Phase 5 stays complete for releases + install scripts.

No CLI or workflow behavior changes; the optional bump-homebrew-tap job in release.yml was already disabled.

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[LukasWodka]

👋 Heads-up — Code review queue is at 11 / 8

Above the WIP limit. The team convention is to review existing PRs before opening new work.

Open PRs currently in Code review (oldest first):

• averaging-service#98 — ci: add fr-gate caller workflow · author: @LukasWodka · no reviewer assigned
• client#191 — fix(#190): fail image-refresh loudly when the ingestor (ghcr) digest can't resolve · author: @saadqbal · no reviewer assigned
• data-ingestors#146 — test(schema): lock category enum to the engine's TaskCategory (anti-drift) · author: @LukasWodka · reviewer: @saadqbal
• design-system#19 — fix: un-track coverage/ and node_modules/ from git · author: @LukasWodka · no reviewer assigned
• design-system#22 — ci: add Vitest test workflow · author: @LukasWodka · reviewer: @aptracebloc
• design-system#23 — ci: add fr-gate caller workflow · author: @LukasWodka · no reviewer assigned
• docs#46 — docs: make declarative-ingest staging self-contained (data-ingestors#131 B/C) · author: @divyasinghds · no reviewer assigned
• frontend-app#499 — ci: add Vitest + Cypress test workflow · author: @LukasWodka · reviewer: @aptracebloc
• model-zoo#77 — ci: add fr-gate caller workflow · author: @LukasWodka · no reviewer assigned
• model-zoo#85 — Develop · author: @divyasinghds · no reviewer assigned

Pull from review before opening new work. (This is a nudge from the kanban WIP check, not a block.)