feat: add paste option in dual currency input

[im-adithya]

Adds paste tooltip in DualCurrencyInput component

Summary by CodeRabbit

• New Features
  • Added clipboard paste support for currency amounts via long-press gesture.
  • Haptic feedback triggered when long-pressing the amount input.
  • Dismissible paste action overlay appears when clipboard data is available.
  • Input validation with error notifications for invalid amounts.

[im-adithya]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 499a0c85-992f-49c3-a1f7-2090d17b5e66

📥 Commits

Reviewing files that changed from the base of the PR and between 6d55bda and d2bc84b.

📒 Files selected for processing (1)

• components/DualCurrencyInput.tsx

📝 Walkthrough

Walkthrough

DualCurrencyInput gains clipboard paste support: a long-press on the amount display triggers haptics and shows a "Paste" popover. Pasted text is sanitized per input mode (sats vs fiat), validated against MAX_SATS_THRESHOLD, and applied via setAmount. Invalid clipboard content emits an error toast. expo-haptics is added as a new dependency.

Changes

Long-press Clipboard Paste in DualCurrencyInput

Layer / File(s)	Summary
Paste state, parsing, and callbacks package.json, components/DualCurrencyInput.tsx	Adds expo-haptics dependency, imports Clipboard and Haptics, introduces showPasteAction state, and implements applyPastedValue (sanitize, parse, threshold check, setAmount) and paste (async clipboard read, apply, hide UI) callbacks.
Long-press overlay and Paste popover render components/DualCurrencyInput.tsx	Updates the amount display to render a dismissible absolute overlay and a "Paste" popover button on long-press when there is no current input and the field is not read-only; haptics fire on reveal.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 Hop, hop — I long-pressed today,
Clipboard treasures on their way!
Sats or fiat, clean and bright,
Haptics buzz with pure delight.
Invalid paste? A toast will say.
✨ Paste away, dear friend, paste away!

🚥 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%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main feature added: a paste option in the dual currency input component, which matches the changeset.
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.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/dualcurrencyinput-paste

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@components/DualCurrencyInput.tsx`:
- Around line 554-564: The Pressable component in the paste action menu has
conflicting background classes where bg-foreground and bg-card are both applied,
causing bg-card to override bg-foreground. This creates visual inconsistency
with the arrow being dark while the button is light, and results in poor text
contrast. Remove the bg-foreground class from the Pressable and keep only
bg-card, then verify the text-background color provides sufficient contrast
against the bg-card background, changing to text-foreground or another
appropriate color if the contrast is inadequate.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: f9774b4f-4ee9-4634-acf7-b6c6896f1841

📥 Commits

Reviewing files that changed from the base of the PR and between 1ce5cd6 and 6d55bda.

⛔ Files ignored due to path filters (1)

• yarn.lock is excluded by !**/yarn.lock, !**/*.lock

📒 Files selected for processing (2)

• components/DualCurrencyInput.tsx
• package.json