v0.7.0

Added

• Invoice XML serialization — generate valid KSeF invoice XML (FA2, FA3, PEF, PEF_KOR) directly from typed application data, with XSD-compliant element ordering handled automatically (KSeF API v2.4.0).
• Stricter invoice XML validation — invoices containing XML processing instructions or characters discouraged by the W3C XML specification are now rejected client-side with precise offsets, matching server-side rules enforced on the KSeF production environment from 2026-07-16 (KSeF API v2.4.0).
• Structured 400 validation errors — KSeF server-side validation failures now expose the full list of error codes and descriptions instead of a single flat message (KSeF API v2.4.0).
• Richer rate-limit errors — applications now receive clearer retry guidance and full server diagnostic context when requests are throttled (KSeF API v2.4.0).
• Typed 403 permission context — forbidden errors now expose structured required/present permission lists for easier troubleshooting.
• Safer server-error handling — applications can handle every documented Problem Details response with compile-time exhaustiveness checks.
• One-step self-revoke — a new CLI command revokes the token used for the current login and clears local state in a single step (KSeF API v2.4.0).
• Subunit permission filtering — VAT-group users can narrow personal and entity permission queries to a specific member subunit (KSeF API v2.2.0).

Changed

• Unified error hierarchy — all server HTTP errors now share a common base class, so one catch branch can handle every server-returned failure.
• Problem Details responses — the client requests structured error responses by default while preserving compatibility with legacy error bodies.
• Richer CLI error output — the CLI now prints the full server-side diagnostic context for every failure and can emit structured payloads for machine consumption.
• Cached token reference in local credentials — logging in with a long-lived token now caches its reference so self-revoke works in one step without an extra lookup.

Fixed