Rename /accounts endpoint to /ais

[claude]

Closes #3

Summary

Issue #3 asks to rename the /accounts endpoint to /ais for the Account API (AIS) due to a standard change. The issue's "Affected endpoints and components" list names only GET /accounts, and the As-Is/To-Be diff shows a single path (/accounts → /ais), so this PR renames only that path key in src/accountAPI.yaml:

• paths./accounts (the listAccounts GET operation) → paths./ais

No other change: /accounts/{accountId}, /accounts/{accountId}/balance, /accounts/{accountId}/transactions, /accounts/{accountId}/transactions/{entryId}, the /accounts endpoint in paymentAPI.yaml (issue scopes this to AIS only), example strings in shared schemas (AccountItem, AccountBalanceItem, AccountTransactionReport, EventNotification, etc.), operationId, tags, and info.version are all left untouched.

Assumptions / open points

• Scope of the rename: the issue only lists GET /accounts as affected and gives a single-path As-Is/To-Be, so only that one path was renamed. Note this creates a small inconsistency: the account list now lives at /ais while the single-account and sub-resource endpoints stay under /accounts/{accountId}/.... If the intent was actually to rename the whole /accounts/* subtree (and update the path examples inside shared AIS schemas accordingly) to keep the collection and its sub-resources under the same base path, please confirm and this can be extended in a follow-up commit on this branch.
• This is a breaking path rename; per repo rules info.version was not touched — versioning is handled by the release process.
• Validation:
  • yamllint -c github/.github/.yamllint -f github src/ — only pre-existing findings in unrelated files (confirmed identical on main); src/accountAPI.yaml itself has zero findings.
  • yamllint -d "{extends: github/.github/.yamllint, rules: {line-length: {max: 170}}}" -f github accountAPI.yaml paymentAPI.yaml accountAPI-eventNotificationWebhook.yaml paymentAPI-eventNotificationWebhook.yaml — passes clean.
  • npx @redocly/cli@2.15.0 lint --config=github/.github/redocly.yaml accountAPI.yaml paymentAPI.yaml accountAPI-eventNotificationWebhook.yaml paymentAPI-eventNotificationWebhook.yaml — passes clean (these root files aren't regenerated yet; that happens via the SFTI Bundle CI workflow).
  • npx @redocly/cli@2.15.0 bundle --config .github/redocly.yaml cannot be run: this repository has no .github/redocly.yaml file (git log --all -- .github/redocly.yaml shows it has never existed on any branch, including main). That's a pre-existing repository/CI configuration gap, unrelated to this change, and it's why the SFTI Bundle / bundle-specs check on this PR fails ("Missing redocly config file at .github/redocly.yaml"). Per repo rules this agent may not create or edit anything under .github/, so this needs to be added separately by a maintainer. As a substitute, npx @redocly/cli@2.15.0 bundle src/accountAPI.yaml was run directly, confirming all $refs in the split source still resolve correctly after the rename.

Co-Authored-By: sfti-agent ai-agent@common-api.ch