[itscheems]

Long articles now support 512 ordered image placements across document validation, draft storage, publishing, and read projections. Short-post media limits remain unchanged.

Inline links can be edited directly from the document, original media links retain browser navigation, and section navigation resolves live heading elements while image dimensions reserve space before loading. Clicking whitespace after a final code block starts a text paragraph and supports undo.

Migration 0015 rebuilds the ordered media-reference tables while preserving references and alt text. Older binaries reject the newer migration ledger; reverting to them requires the pre-upgrade database backup.

Validation:

• go test ./..., go vet ./..., and golangci-lint run passed.
• 308 focused web tests across 18 files passed, including article editing, reading, media routing, and API parsing.
• Web lint and type checking passed.
• Browser verification covered long-document navigation, lazy image geometry, inline link editing, media links, and text entry after code blocks, including undo and redo.

Closes #209