feat(payments): add Mollie as a payment provider option in builder

[namdamdoi68-oss]

Add Mollie as a payment provider option in the stack builder, CLI prompt, and template generator for European payment support.

Closes #1077

Summary by CodeRabbit

• New Features
  • Added Mollie as a selectable payments provider.
  • Added Mollie payment setup and API client configuration for generated projects.
  • Added Mollie branding, labels, icons, and light-theme support.
• Updates
  • Updated payment configuration validation and generated environment settings to support Mollie API keys.
  • Added Mollie-specific setup options for supported deployment configurations.

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Walkthrough

Changes

Adds Mollie as a validated payment provider. Updates CLI and web selection, display labels, icons, generated dependencies, environment variables, and Mollie client templates.

Changes

Mollie payment provider

Layer / File(s)	Summary
Payment selection and UI packages/types/src/schemas.ts, apps/cli/src/prompts/payments.ts, apps/cli/src/utils/display-config.ts, apps/web/src/lib/constant.ts, apps/web/src/app/(home)/new/_components/tech-icon.tsx, apps/web/src/components/ui/tech-badge.tsx	Adds Mollie to payment validation, CLI choices, display labels, web payment options, and light-theme icon handling.
Mollie dependencies and environment packages/template-generator/src/utils/add-deps.ts, packages/template-generator/src/processors/payments-deps.ts, packages/template-generator/src/processors/env-vars.ts, packages/template-generator/templates/packages/env/src/server.ts.hbs	Adds the Mollie SDK and configures MOLLIE_API_KEY for generated projects.
Generated Mollie client packages/template-generator/templates/payments/mollie/server/base/src/lib/payments.ts.hbs	Generates a Mollie client singleton or a Cloudflare/Svelte self-hosted client factory.

Possibly related PRs

• AmanVarshney01/create-better-t-stack#1121 — Changes wording in the same payment-selection prompt.
• AmanVarshney01/create-better-t-stack#1170 — Extends the Mollie integration with related template, dependency, environment, and UI changes.

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Linked Issues check	❓ Inconclusive	The visible changes satisfy the selector, SDK, environment, and client wiring objectives, but template registration cannot be verified.	Verify Mollie template registration in packages/template-generator/src/templates.generated.ts, excluded by !**/.generated..

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies adding Mollie as a payment provider option, which matches the primary changes.
Out of Scope Changes check	✅ Passed	The changes are directly related to adding Mollie support across the builder, CLI, schema, and template generator.

✨ Finishing Touches 💡 2

⚔️ Resolve merge conflicts 💡

• Resolve merge conflict in branch feat/mollie-payment-provider

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

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[coderabbitai]

Actionable comments posted: 2

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: da485c1f-6b87-4531-8d33-44c0fe05f8b5

📥 Commits

Reviewing files that changed from the base of the PR and between a30a6e0 and c4ba482.

📒 Files selected for processing (8)

• apps/cli/src/prompts/payments.ts
• apps/cli/src/utils/display-config.ts
• apps/web/src/app/(home)/new/_components/tech-icon.tsx
• apps/web/src/components/ui/tech-badge.tsx
• apps/web/src/lib/constant.ts
• packages/template-generator/src/processors/payments-deps.ts
• packages/template-generator/templates/payments/mollie/server/base/src/lib/payments.ts.hbs
• packages/types/src/schemas.ts

[namdamdoi68-oss]

Hi @AmanVarshney01 @github-actions[bot] — PR is ready for review. All CI tests pass cleanly.

[coderabbitai]

Actionable comments posted: 2

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: e88bff35-6be6-4e0a-aee6-d72fb2ab63e4

📥 Commits

Reviewing files that changed from the base of the PR and between b4aa3f6 and f7e892b.

⛔ Files ignored due to path filters (1)

• packages/template-generator/src/templates.generated.ts is excluded by !**/*.generated.*

📒 Files selected for processing (5)

• packages/template-generator/src/processors/env-vars.ts
• packages/template-generator/src/processors/payments-deps.ts
• packages/template-generator/src/utils/add-deps.ts
• packages/template-generator/templates/packages/env/src/server.ts.hbs
• packages/types/src/schemas.ts

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/template-generator/src/processors/payments-deps.ts