Add a proper license

Signed-off-by: Juan Cruz Viotti <[email protected]>

Author: jviotti

LICENSE

@@ -1,8 +1,126 @@
-© Sourcemeta. 
+Sourcemeta JSON Schema Standard Library License
 
-These schemas and tests are licensed solely to active paying users of the
-Sourcemeta Registry. Use, copying, distribution, or sublicensing by anyone not
-currently paying for the Sourcemeta Registry is strictly prohibited. 
+For acquiring a commercial license, visit: https://www.sourcemeta.com.
 
-The schemas are provided "as is" without any warranty, and Sourcemeta is not
-liable for any damages arising from its use.
+For licensing questions, contact: [email protected]
+
+1. Grant of License
+
+Sourcemeta ("Licensor") grants you ("Licensee") a limited, non-exclusive,
+non-transferable, and revocable License to use the Sourcemeta JSON Schema
+Standard Library ("Schemas") under the following editions:
+
+- Community (Free): Non-commercial use only. Licensee may use and redistribute
+  the Schemas for personal, research, academic, or any other non-commercial
+  purposes. Use by or on behalf of a commercial entity, including but not
+  limited to for-profit companies, is prohibited under this edition.
+
+- Pro (Commercial): Commercial use without redistribution. Licensee may use the
+  Schemas for commercial purposes, including as part of internal systems,
+  APIs, and publicly exposed specifications (such as OpenAPI specifications).
+  Redistribution of the Schemas as a direct feature or offering of Licensee's
+  product or service is prohibited under this edition.
+
+- Enterprise (Commercial): Commercial use with redistribution rights. Licensee
+  may use and redistribute the Schemas as part of Licensee's product or
+  service, including offering the Schemas as a feature to end users.
+
+Each License is separately granted to a single Entity, where Entity refers to a
+single legal or natural person, including a company, nonprofit, and government
+agency. Subsidiaries, affiliates, and related legal persons are considered
+separate Entities.
+
+2. License Notice Requirement
+
+All editions require that the "x-license" property present in each Schema file
+must be preserved without modification. This property contains a reference to
+this License and must remain intact in any use or distribution of the Schemas.
+
+Removal or modification of the "x-license" property is only permitted under a
+separate white-label OEM agreement negotiated directly with Licensor.
+
+3. Usage Rights & Restrictions
+
+- Redistribution under Community edition: Licensee may redistribute the Schemas
+  to other parties for non-commercial purposes, provided that all recipients
+  are subject to the same license terms and the "x-license" property is
+  preserved.
+
+- Redistribution definition: For purposes of this License, "redistribution"
+  means directly offering or providing the Schemas as a feature, product, or
+  service to third parties. Public exposure of the Schemas in API
+  specifications, documentation, or validation endpoints is not considered
+  redistribution.
+
+- Commercial use definition: "Commercial use" means any use by or on behalf of
+  a commercial entity or in connection with revenue-generating activities,
+  regardless of whether the Schemas directly generate revenue.
+
+- The Licensee must not modify, obscure, or remove any copyright notices,
+  attribution, or the "x-license" property from the Schemas except as
+  explicitly permitted by a white-label OEM agreement.
+
+- The Licensee must not resell, sublicense, or provide the Schemas in any way
+  that directly competes with Licensor or undermines Licensor's commercial
+  licensing model.
+
+Licensee is excused for unknowingly breaking these terms if Licensee takes all
+practical steps to comply within 30 days of learning that the License terms
+were broken. Otherwise, failure to comply results in immediate automatic
+termination of this License without the right to a refund.
+
+4. License Certificate & Compliance
+
+Commercial editions (Pro and Enterprise) require a valid signed License
+certificate issued by the Licensor and/or proof of payment to the Licensor for
+the monetary amount published by Licensor at the time of purchase. The License
+is fully refundable within 30 days of purchase. The Licensee is responsible for
+all taxes, withholdings, duties and levies arising from the order.
+
+Licensor reserves the right to audit the Licensee's compliance with this
+License, including, but not limited to requesting usage reports and
+investigating potential violations. Licensee must provide proof of compliance
+within 14 days of an audit request.
+
+Licensor reserves the right to amend this License at any time. Any
+modifications will apply at the time of renewal and will not affect existing
+active License agreements between Licensee and Licensor.
+
+5. Subscription & Termination
+
+- The License is valid only while the subscription is active.
+- Upon expiration or termination of the subscription, Licensee must cease all
+  commercial use of the Schemas within 30 days or renew the License.
+- Community edition rights remain available after commercial subscription
+  termination for non-commercial use only.
+
+6. Intellectual Property Rights
+
+All intellectual property rights in the Schemas remain with Licensor. No sale
+or transfer of intellectual property rights is implied. The Schemas are
+original works authored by Licensor or its contributors.
+
+7. External Contributions
+
+Licensee may submit contributions to the Schemas.
+
+- If the Licensee submits a contribution, all rights, title, and interest in
+  the contribution are transferred to Licensor.
+- Licensee warrants that they own all intellectual property rights to their
+  contribution and accept full liability for any copyright or patent
+  infringement.
+
+8. Limitation of Liability
+
+The Schemas are provided "as is", without warranties of any kind, express or
+implied, including but not limited to warranties of merchantability, fitness
+for a particular purpose, accuracy, or non-infringement. Licensor is not liable
+for any damages arising from use of the Schemas under any kind of legal claim,
+including but not limited to direct, indirect, incidental, consequential, or
+punitive damages. Licensee indemnifies Licensor and its affiliates against
+claims arising from Licensee's use of the Schemas.
+
+9. Governing Law & Jurisdiction
+
+This License is governed by the laws of the jurisdiction of Licensor. Any
+disputes shall be resolved in such jurisdiction.