chore(onboard): wire quickstart to the content profile

[LukasWodka]

Wires tracebloc/quickstart to the content profile (profiles/content.yml in tracebloc/org-config).

• .cursor/BUGBOT.md
• .github/workflows/add-to-kanban.yml
• .github/workflows/advance-deploy-env.yml
• .github/workflows/bugbot-gate.yml
• .github/workflows/code-quality.yml
• .github/workflows/customer-priority-bump.yml
• .github/workflows/fr-gate.yml
• .github/workflows/fr-pass-comment.yml
• .github/workflows/kanban-closure-router.yml
• .github/workflows/set-pr-status.yml
• .github/workflows/stale-backlog.yml
• CLAUDE.md

Opened by scripts/onboard_repo.py. Callers are this repo's own callers with the
uses: host re-pointed; the kanban copy is the canonical bytes the conformance audit
compares; CLAUDE.md and BUGBOT.md are skeletons to fill in (never overwritten on a
re-run). The matching repo-inventory.yml entry is derived from the same profile.

Part of tracebloc/backend#3588.

---

Note

Medium Risk
Adds many GitHub workflows that mint App tokens and write the org kanban; misconfiguration or missing secrets would fail closed or strand cards, but the bytes are fleet-standard onboarding copies rather than new automation logic.

Overview
Onboards quickstart to the org content profile (profiles/content.yml): it adds the conformance-expected .cursor/BUGBOT.md skeleton and CLAUDE.md (repo header plus synced org-standards block), and drops in the canonical self-contained GitHub Actions workflows that public repos need because they cannot uses: reusables from private tracebloc/org-config.

The new workflows wire this repo into the same release-train automation as the rest of the fleet: kanban (add-to-project, advance on branch push, closure routing, customer/bug triage, stale backlog, PR status), promotion gates (FR gate, /fr-pass), and quality (code-quality suite, Bugbot review gate). Each generated file inlines the org reusable plus caller with literals and release-train App token minting; scripts still checkout tracebloc/org-config at runtime.

No application/runtime code changes—this is CI/process onboarding aligned with repo-inventory.yml and backend#3588.

^{Reviewed by Cursor Bugbot for commit 2c15a24. Bugbot is set up for automated code reviews on this repo. Configure here.}

[saadqbal]

Clean onboarding PR. Diffed every added workflow against org-config's canonical self-contained templates and the add-to-kanban copy — all byte-identical, no dangling uses:, nothing half-wired. develop already has the right required checks and the merge-commit-only ruleset. CLAUDE.md/BUGBOT.md are the expected skeletons.

One nit, not blocking: the PR description's line "Callers are this repo's own callers with the uses: host re-pointed" is onboard_repo.py boilerplate that doesn't actually apply to the content profile — there are no callers here, everything's self-contained. Worth fixing in the script's pr_body() sometime; doesn't affect what shipped here.