Update dependency convex to v1.18.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
convex (source)	1.17.4 -> 1.18.0

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Release Notes

get-convex/convex-js (convex)

v1.18.0

• Warn on direct Convex function call. This adds a console.warn whenever a
  Convex Function (mutation, query, action, internalMutation, etc.) is called
  directly

  export const foo = mutation(...);
  
  export const bar = mutation({
    args: v.any(),
    returns: v.any(),
    handler: (ctx, args) => {
      const result = await foo();
    })
  }

  because this pattern causes problems and there are straightforward
  workarounds. The problems here:

  1. Arguments and return values aren't validated despite the presence of
     validators at the function definition site.
  2. Functions called this way unexpectedly lack isolation and atomicity. Convex
     functions may be writting assuming they will run as independent
     transactions, but running these function directly breaks that assumption.
  3. Running Convex functions defined by customFunctions like triggers can cause
     deadlocks and other bad behavior.

  There are two options for how to modify your code to address the warning:

  1. Refactor it out as a helper function, then call that helper function
     directly.
  2. Use ctx.runMutation, ctx.runQuery, or ctx.runAction() instead of
     calling the function directly. This has more overhead (it's slower) but you
     gain isolation and atomicity because it runs as a subtransaction.

  See
  https://docs.convex.dev/production/best-practices/#use-helper-functions-to-write-shared-code
  for more.

  Filter to warnings in the convex dashboard logs to see if you're using this
  pattern.

  For now running functions this way only logs a warning, but this pattern is
  now deprecated and may be deleted in a future version.

• Support for Next.js 15 and
  Clerk core 2:
  @clerk/nextjs@5 and @clerk/nextjs@6 are now known to work to Convex. Docs,
  quickstarts and templates have not yet been updated. If you're upgrading
  @clerk/nextjs from v4 or v5 be sure to follow the Clerk upgrade guides as
  there are many breaking changes.

• Improvements to npx convex run:

  • Better argument parsing with JSON5 so { name: "sshader" } parses
  • support for --identity similar to dashboard "acting as user" feature, like
    npx convex run --identity '{ name: "sshader" }'
  • npx convex run api.foo.bar is equivalent to npx convex run foo:bar
  • npx convex run convex/foo.ts:bar is equivalent to npx convex run foo:bar
  • npx convex run convex/foo.ts is equivalent to npx convex run foo:default

• Allow non-JavaScript/TypeScript files in the convex/ directory. Only .js
  etc. files will be bundled and may define Convex functions points but adding a
  temporary file like convex/foo.tmp will no longer break` the build.

• Fix type for FieldTypeFromFieldPath with optional objects.

• Fix types when a handler returns a promise when using return value validators
  with object syntax.

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