MEMBERS-DIRECTORY-001J — Preserve profile-recovery keyboard focus

[daliu]

Closes #637

Officer impact: In the preserved future My Account interface, keyboard and screen-reader users are moved to the available Reload settings action after a profile-photo or finder-setting failure, including each failed reload. The connected interface remains unavailable on production.

Officer documentation: SYSTEM_DESIGN.md, IMPLEMENTATION_PLAN.md, SECURITY.md, and the optional member-directory text alternative plus no-terminal evidence-review procedure in docs/officers/EVENTS_SHOP_MEMBERS.md.

Deployment evidence: None. This is source-only interface accessibility hardening. memberDirectoryAvailability.ts remains byte-for-byte false; runmprc.com remains the inert #623 artifact; Firebase, providers, accounts, sign-in, production data, and connected-live behavior are unchanged.

Outcome

• Bind one recovery-focus intent to the current component lifetime and, for reloads, the exact profile-read identity.
• Focus the rendered recovery action after user-initiated mutation/readback failure and each failed replacement reload.
• Never steal focus on initial/background failure or from a newer app/UID context.
• Clear recovery intent after authoritative success.
• Add separately named RED/GREEN coverage for all mutation kinds, repeated reloads, success, and stale contexts.
• Add source-only engineering and backup-officer evidence documentation.

Evidence

• Base/main: 3d49752eef6dc72fb74408b055aea7bd0d691bb9
• Head: e74a1777b0ae5284b127f2b3331815db94aac2cd
• Tree: 2ccf563acd9021876f2c678a33ff797cdf460e23
• Exact six-path binary diff SHA-256: 8a84508b089ee14f72ecbbe10fa93f717104154adc2ea20dcbf110cbf6855d0e
• Trustworthy RED: 7 required focus cases failed against the old runtime.
• Focused 001J: 11/11 passed.
• Full component: 96/96 passed.
• Full frontend: 18/18 suites, 1,141/1,141 passed.
• TypeScript, lint baseline, diagnostic build, and git diff --check: passed.
• Workflow/release/security Node suite: 105/105 passed.
• Three independent reviews: GO with no findings.

No CSS, Account wiring, admin finder, client service, backend, Rules, index, package, workflow, release-control, provider, account, data, deployment, or live change is included. #507 retains connection/release authority, and active #616 paths/hunk are preserved.

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