chore(community): remove bounty-related templates and docs

Delete the enhancement bounty issue template and remove bounty references
from bug reports, PR template wording, CONTRIBUTING guidelines, and README
badges/sponsors to align contribution messaging.

.github/ISSUE_TEMPLATE/01_BUG_REPORT.yml

@@ -9,9 +9,6 @@ body:
         > [!IMPORTANT]
         > **Please ensure you are using the latest version of Coolify before submitting an issue, as the bug may have already been fixed in a recent update.** (Of course, if you're experiencing an issue on the latest version that wasn't present in a previous version, please let us know.)
 
-        # 💎 Bounty Program (with [algora.io](https://console.algora.io/org/coollabsio/bounties/new))
-          - If you would like to prioritize the issue resolution, consider adding a bounty to this issue through our [Bounty Program](https://console.algora.io/org/coollabsio/bounties/new).
-
   - type: textarea
     attributes:
       label: Error Message and Logs

.github/ISSUE_TEMPLATE/02_ENHANCEMENT_BOUNTY.yml

@@ -1,31 +0,0 @@
-name: 💎 Enhancement Bounty
-description: "Propose a new feature, service, or improvement with an attached bounty."
-title: "[Enhancement]: "
-labels: ["✨ Enhancement", "🔍 Triage"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        > [!IMPORTANT]
-        > **This issue template is exclusively for proposing new features, services, or improvements with an attached bounty.** Enhancements without a bounty can be discussed in the appropriate category of [Github Discussions](https://github.com/coollabsio/coolify/discussions).
-
-        # 💎 Add a Bounty (with [algora.io](https://console.algora.io/org/coollabsio/bounties/new))
-          - [Click here to add the required bounty](https://console.algora.io/org/coollabsio/bounties/new)
-
-  - type: dropdown
-    attributes:
-      label: Request Type
-      description: Select the type of request you are making.
-      options:
-        - New Feature
-        - New Service
-        - Improvement
-    validations:
-      required: true
-
-  - type: textarea
-    attributes:
-      label: Description
-      description: Provide a detailed description of the feature, improvement, or service you are proposing.
-    validations:
-      required: true

.github/pull_request_template.md

@@ -22,7 +22,7 @@
 
 ## Preview
 
-<!-- Screenshot or short video showing your changes in action. Mandatory for bounty claims and new features. -->
+<!-- Screenshot or short video showing your changes in action. Mandatory for new features. -->
 
 ## AI Assistance