refactor: merge lend create and manage loan + vault pages

[DanielSchiavini]

This change is to merge the loan creation and manage pages for all lend markets

• until now we had different URLs for creating and managing a loan
• that meant if you landed in the wrong page you might see a totally wrong image of your loan
• there were redirects in place from one to the other, but these were complex and buggy
• instead, we now just look at your wallet, if you have an open loan the page reacts to it, no redirects necessary
• less complexity, less bugs, less urls, less redirects, less code 🙏 but no change in functionality for the users
• similar refactor: merge mint create and manage loan pages #1749
• depends on refactor: form tabs #1747

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Project	Deployment	Review	Updated (UTC)
curve-dapp	Ready	Preview, Comment	Dec 17, 2025 1:59pm
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[0xPearce]

There are two "Borrow" tabs in Legacy mode. Example WBTC <> crvUSD lend market

Preview	curve.finance

[0xPearce]

Great refactor! 🙏

The base branch was changed.

[Copilot]

Pull request overview

This PR consolidates the loan creation and management pages into a single unified market page, reducing complexity and eliminating bug-prone redirects. The page now dynamically displays create or manage forms based on whether the user has an existing loan.

Key changes:

• Merged PageLoanCreate and PageLoanManage into a single LendMarketPage component
• Simplified routing from /create and /manage to a single /markets/$market route with redirects for backwards compatibility
• Consolidated form types, utilities, and styles from separate page directories into shared PageLendMarket directory
• Removed complex redirect logic in favor of simple conditional rendering based on loanExists state

Reviewed changes

Copilot reviewed 67 out of 69 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
lend.routes.tsx	Consolidated routes, added redirects from old /create and /manage URLs to unified market route
constants.ts	Updated MARKET_ROUTES to use empty string for PAGE_LOAN instead of separate create/manage routes
utilsRouter.ts	Replaced getLoanCreatePathname and getLoanManagePathname with single getLoanPathname
helpers.ts	Removed _showNoLoanFound helper (logic now handled in component)
lend.types.ts	Added FormStatus type definition for shared use across components
PageLendMarket/LendMarketPage.tsx	New unified page component that conditionally renders create or manage tabs based on loan existence
PageLendMarket/utils.ts	Consolidated form utilities and constants from both old pages
PageLendMarket/types.ts	Merged type definitions from create and manage pages
PageLendMarket/ManageLoanTabs.tsx	Updated to receive position details as props instead of computing soft liquidation state
PageLendMarket/LoanCreateTabs.tsx	Moved from old PageLoanCreate with updated imports
PageLendMarket/LoanFormCreate/LoanCreateForm.tsx	Refactored to remove loan existence checks and redirect logic
PageLendMarket/Loan* components	Updated imports from old PageLoanManage paths to new PageLendMarket paths
components/styles.ts	Extracted shared styled components from PageLoanManage for reuse
PageVault/*	Updated imports to use new shared types and styles locations
store/* slices	Updated imports to reference new PageLendMarket paths
hooks/useMarketDetails.tsx	Renamed params from llamma/llammaId to market/marketId for consistency
hooks/useLendPageTitle.ts	Made prefix parameter optional for unified page title
BandsComp.tsx	Changed to use loanExists boolean instead of separate page prop
MarketInformationComp.tsx	Removed page prop, now uses loanExists to determine behavior
Test files	Updated URL patterns to match new simplified routes

Comments suppressed due to low confidence (1)

apps/main/src/lend/components/PageLendMarket/LendMarketPage.tsx:168

• The UserPositionHistory component is being rendered twice when !loanExists:

1. Inside the NoPosition stack (lines 146-152)
2. Below the conditional rendering (lines 155-168)

This will cause duplicate position history sections to appear on the page when there's no active loan. The second instance (lines 155-168) should likely only render when loanExists is true.

The base branch was changed.