Fix RFC10 allowance init handling

[charlesHetterich]

Summary

• remove BulletInAllowance from the dot init mobile resource-allocation request
• create or reuse a locally cached Bulletin slot account and show a non-fatal Bulletin authorization needed warning with the env-configured faucet URL and account to authorize
• make metadata upload use that same cached Bulletin slot account and fail with the faucet instruction when the account is not authorized or has insufficient quota
• keep RFC10 mobile allocation for Statement Store and Smart Contract resources, including batched slot-key persistence for successful allocation outcomes
• retain the stale-session guard so dot logout can still recover when an old stored session is missing rootAccountId

Main Merge Reconciliation

This branch is merged with current main through #188 and #189.

Kept from #188:

• logged in shows the SSO root address
• username lookup is keyed on the root address
• product account shows the derived product SS58 and matching H160
• the obsolete identityLine.ts helper stays deleted

Kept from #189:

• QrLogin no longer calls parent state updates from inside a setStatus updater
• Bulletin authorization URL lives in chain config as bulletinAuthorizationUrl
• storeSlotAccountKeysFromOutcomes uses one batched read-modify-write and preserves sibling slot keys
• faucet helper tests cover configured and no-faucet cases

Intentionally changed from #189:

• BulletInAllowance is not requested from mobile during dot init
• deploy does not fall back to requesting Bulletin allowance from mobile
• the CLI uses a locally cached Bulletin slot account and asks the user to authorize that exact account through the faucet

User-Visible Behavior

When the cached Bulletin slot account has no usable Bulletin authorization, dot init completes setup and prints:

Bulletin authorization needed
Open the Bulletin authorization faucet at https://paritytech.github.io/polkadot-bulletin-chain/authorizations
and authorize account <slot account>, then re-run dot init.

The allowances row is no longer failed solely because Bulletin authorization is missing.

Verification

• pnpm format:check
• pnpm lint:license
• pnpm test
• pnpm build

[github-actions]

Dev build ready — try this branch:

curl -fsSL https://raw.githubusercontent.com/paritytech/playground-cli/main/install.sh | VERSION=dev/fix/rfc10-allowance-init bash

[github-actions]

E2E Test Pass · ✅ PASS

Tag: e2e-ci-pr · Branch: fix/rfc10-allowance-init · Commit: ed15fa7 · Run logs

Cell	Result	Time
pr-deploy-frontend	✅ PASS	3m42s
pr-deploy-foundry	✅ PASS	1m39s
pr-init-session	✅ PASS	1m41s
pr-install	✅ PASS	0m50s
pr-mod	✅ PASS	1m17s
pr-deploy-cdm	✅ PASS	2m14s
pr-preflight	✅ PASS	1m31s
${{ matrix.cell }}	⏭️ SKIP	0m00s
${{ matrix.cell }}	⏭️ SKIP	0m00s

Sentry traces: view spans for this run