Replace uses of the legacy `gpt-image-2-all` model with `gpt-image-2` and standardize image workflows: no-reference generation uses POST /v1/images/generations, any-reference flows use POST /v1/images/edits with multipart `image` parts. Update SKILLs, generation scripts, decision logs, and docs to reflect the contract change and edits-vs-generations guidance. Apply corresponding changes across backend (api-server match3d/puzzle modules, openai image adapter, mappers, telemetry, spacetime client/module), frontend components and services (Match3D, Puzzle, CreativeImageInputPanel, runtime shells), and add new spritesheet/parser files and tests. Also add media/logo.png. These changes align repository code and documentation with the VectorEngine image API contract and update generation/upload handling (green-screen -> alpha processing, spritesheet handling, and related tests).
Delete a large set of outdated documentation (many files under docs/ and .hermes/plans/, including audits, design, prd, technical, planning, assets, and todos). Update and consolidate .hermes content: refresh shared-memory pages (decision-log, development-workflow, document-map, pitfalls, project-overview, team-conventions) and several skills/references under .hermes/skills. Also modify AGENTS.md, README.md, UI_CODING_STANDARD.md, docs/README.md and .encoding-check-ignore. Purpose: clean up stale planning/audit material and keep current hermes documentation and related top-level docs in sync.