Update Developer Portal/Account Setup Page to Clarify Fee Information for API Clients

**Goal** : Update the Account Setup Page to ensure API Clients can easily understand when fees may apply and where to find authoritative fee information.

Note : While the API Terms of Use contains a Fees section, it serves a legal purpose. The Account Setup page serves as user guidance and should provide clear, easy-to-find information about fees and fee-related resources. Users should not be required to read and interpret the ToU to determine whether charges may apply to their use of the APIs.

**Scope**

- [ ] Review the existing Sandbox fee statement and assess whether additional clarification is required.
- [ ] Clarify that Sandbox usage is provided at no cost for development and testing purposes for both internal and external API users.
- [ ] Add a statement that Production transactions may be subject to applicable statutory and service fees for internal and external API clients.
- [ ] Add a link to the Product Fees page where applicable fees are published.
- [ ] Mention that in some cases, access to data has no fee (tombstone data, etc - TBD).
- [ ] Add guidance that eligible internal government partners may be able to apply for fee exemption and can contact BCONLINE@gov.bc.ca to discuss exemption criteria and the application process.
- [ ] Proposed Messaging (Subject to Review)

Out of Scope / Related Work ( separate tickets) :

Ensure the Product Fees pages contains accurate and complete information for API consumers.
Clarify which fees apply to UI users, API users, government partners, and exempt users.
https://www.bcregistry.gov.bc.ca/en-CA/product-fees
https://www2.gov.bc.ca/gov/content/employment-business/business/managing-a-business/permits-licences/businesses-incorporated-companies/forms-corporate-registry#fees

Fee-related updates to the API ToU are being tracked separately:
https://app.zenhub.com/workspaces/connect-6690070c1ee5ec09f20a0ec1/issues/gh/bcgov/connect/54

Document and publish the fee exemption process for government API users.