Update deprecated @price helpers to modern price helper syntax

[vitrixbot]

The global @price object is deprecated. This updates members/signup.hbs to use the modern {{price}} helper:

• {{price currency=@price.currency}}{{@price.monthly}} → {{price monthly_price currency=currency}}
• {{price currency=@price.currency}}{{@price.yearly}} → {{price yearly_price currency=currency}}

The {{price}} helper handles currency symbol formatting automatically.

Supersedes #160 (which had a duplicate currency symbol bug).

[coderabbitai]

Walkthrough

The change modifies the members/signup.hbs template to refactor how prices are rendered. Instead of accessing price currency and monthly/yearly amounts through separate template interpolations ({{@price.currency}} with {{@price.monthly}}/{{@price.yearly}}), the template now uses a consolidated price object lookup pattern. Monthly prices are rendered with {{price monthly_price currency=currency}} and yearly prices with {{price yearly_price currency=currency}}. This aggregates the price and currency data retrieval into single helper calls while maintaining the same visual output and template structure.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: updating deprecated @price helpers to modern price helper syntax in members/signup.hbs.
Description check	✅ Passed	The description is directly related to the changeset, providing specific examples of the deprecated syntax being replaced with modern helpers.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)

members/signup.hbs (1)

17-55: ⚠️ Potential issue | 🔴 Critical

monthly_price, yearly_price, and currency are undefined—prices will not render.

Lines 21 and 39 use {{price monthly_price currency=currency}}, but these variables do not exist in this template scope. They are never defined, passed, or available in the {{else if @member}} context.

The old syntax ({{@price.monthly}}, {{@price.yearly}}, {{@price.currency}}) relied on Ghost's legacy @price global, which was available at any scope. The new syntax requires these values to be in scope, either as template variables or from a tier/plan object context.

To fix: either restore the working @price globals (if still supported in your Ghost version), or wrap the checkout content in a {{#get "tiers"}} block to access monthly_price and yearly_price from tier objects. See members/account.hbs line 36-41 for the correct pattern of iterating tiers with {{#foreach @member.subscriptions}} and accessing {{price plan}}.