refactor(mobile): name shared markdown renderer without iOS suffixes

[SunkenInTime]

Android and iOS both import @t3tools/mobile-markdown-text/renderer, whose export explicitly points to SelectableMarkdownText.ios.tsx. That filename made shared code look iOS-only during review of #11079 and its revert in #11098.

Move the renderer and its two shared components to unsuffixed .tsx filenames and update the package export and internal imports. The renderer replaces an unused null-returning placeholder at SelectableMarkdownText.tsx, so the package root now exposes the same implementation as /renderer. Both app clients continue using /renderer.

The component implementations match current upstream exactly after accounting for import paths. This preserves the Android native fix from #11118 and the existing iOS layout. It does not restore the reverted block-layout changes.

Validation: Android and iOS Metro exports passed, mobile typecheck passed, and all 35 focused Markdown tests passed. Formatting passed; targeted lint reported only two existing warnings in unchanged component code. No UI changes or new simulator verification in this PR.

Model: GPT-6. Harness: Codex.

Summary by CodeRabbit

• New Features
  • Markdown content now renders with selectable text across supported mobile platforms.
  • Rich formatting, inline icons, file actions, links, code highlighting, images, and soft-break preservation are supported.
  • File context-menu actions are shared consistently throughout markdown content.
• Bug Fixes
  • Improved platform compatibility for selectable markdown rendering.
  • Links can open through the standard device handler when no custom action is provided.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

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Run ID: 9ebc467f-d523-4315-a682-bc8099bcf559

📥 Commits

Reviewing files that changed from the base of the PR and between 96f4370 and 90452fc.

📒 Files selected for processing (5)

• apps/mobile/modules/t3-markdown-text/package.json
• apps/mobile/modules/t3-markdown-text/src/NativeMarkdownBlock.tsx
• apps/mobile/modules/t3-markdown-text/src/NativeMarkdownSelectableText.tsx
• apps/mobile/modules/t3-markdown-text/src/SelectableMarkdownText.ios.tsx
• apps/mobile/modules/t3-markdown-text/src/SelectableMarkdownText.tsx

💤 Files with no reviewable changes (1)

• apps/mobile/modules/t3-markdown-text/src/SelectableMarkdownText.ios.tsx

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📝 Walkthrough

Walkthrough

The markdown renderer now uses a platform-independent selectable text component. It parses markdown into chunks, renders rich and selectable content, shares file context menu handlers, and supports platform-specific styling, links, icons, and copy behavior.

Changes

Selectable markdown rendering

Layer / File(s)	Summary
Renderer entry point and wiring apps/mobile/modules/t3-markdown-text/src/SelectableMarkdownText.tsx, apps/mobile/modules/t3-markdown-text/src/SelectableMarkdownText.ios.tsx, apps/mobile/modules/t3-markdown-text/src/NativeMarkdownBlock.tsx, apps/mobile/modules/t3-markdown-text/package.json	The generic renderer now parses markdown, builds chunks, provides image and file menu contexts, and renders rich or selectable content. The package export and block import use platform-independent modules.
Native selectable text implementation apps/mobile/modules/t3-markdown-text/src/NativeMarkdownSelectableText.tsx	The new component styles and renders markdown runs with links, file menus, inline icons, platform-specific prefixes, appearance-based native rebuilds, and Android copy sanitization.

Priority: ⬇️ Low

Estimated code review effort: 4 (Complex) | ~45 minutes

Sequence Diagram(s)

sequenceDiagram
  participant SelectableMarkdownText
  participant MarkdownParser
  participant NativeMarkdownBlock
  participant NativeMarkdownSelectableText
  SelectableMarkdownText->>MarkdownParser: Parse markdown into chunks
  SelectableMarkdownText->>NativeMarkdownBlock: Render rich chunks
  SelectableMarkdownText->>NativeMarkdownSelectableText: Render selectable runs
  NativeMarkdownSelectableText->>NativeMarkdownSelectableText: Handle links and file context menus

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Suggested reviewers: juliusmarminge

Merge Risk: ⚪ Minimal · up to 90452

The shared selectable Markdown renderer is wired for both mobile platforms, with existing native behavior preserved. Validation passed and no merge-blocking risk remains.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 3 files. (1 skipped: 1 …	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: renaming the shared mobile Markdown renderer to remove iOS-specific suffixes.
Description check	✅ Passed	The description explains what changed, why it changed, validation results, and that there are no UI changes. It does not reproduce the template headings or checklist, but it provides the required info…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 3 files. (1 skipped: 1 unsupported.)

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✨ Finishing Touches

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[macroscopeapp]

Approvability

Verdict: Approved at 90452fc

Macroscope's review found this PR approvable — This is a contained filename/export refactor that preserves the existing renderer used by both mobile platforms. The only additive behavior is activating an unused package-root export, with no current in-repository consumers or broader product-default changes.

Notes:

• Diff unchanged. Approvability was decided on eligibility alone.

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