22 - the line container is markdown's, so the seam is the two spelling asks

src/markdown/emit/inline-line.ts

@@ -1,6 +1,7 @@
 import type { AdfMark, AdfNode } from '../../adf/document.ts'
 import type { InlineNodeModel } from '../../adf/inline-nodes.ts'
-import { assembleInlineLine, isSyntax, type InlineEscaping, type InlineSegment, type LineContainer, type NodeRange } from './line-escaping.ts'
+import type { LineContainer } from '../line-container.ts'
+import { assembleInlineLine, isSyntax, type InlineEscaping, type InlineSegment, type NodeRange } from './line-escaping.ts'
 import { carriedInline } from '../opaque-carry.ts'
 import { claimsLine, holdsNullCharacter, trimTrailingSpace } from '../commonmark/grammar.ts'
 import { commonMarkLink, linkHref, markSpelling, spellMarkAttributes } from '../mark-spellings.ts'

src/markdown/emit/line-escaping.ts

@@ -1,3 +1,4 @@
+import type { LineContainer } from '../line-container.ts'
 import { backslashEscape, escapesLineClaim, inlineHtmlConstruct, opensBracketedAutolink, opensEmailAutolink, type LinePosition } from '../commonmark/grammar.ts'
 import { backtickRun, closingBacktickRun } from '../commonmark/backtick-runs.ts'
 import { claimsDirectivePrefix } from '../directive-syntax.ts'
@@ -21,8 +22,6 @@ export type AssembledLine = { line: string; openingLinkAsDirective?: true; unspe
 
 type ScanLine = { position: LinePosition; start: number; text: string }
 
-export type LineContainer = 'heading' | 'paragraph' | 'table-cell'
-
 type EmittedDelimiter = { closes: boolean; offset: number; pair: number; width: number }
 
 type EmittedRun = { canClose: boolean; canOpen: boolean; character: string; delimiters: EmittedDelimiter[]; length: number; start: number }