fix: simplify PR template - remove broken subfolder approach

GitHub PR templates don't support dropdown selection like issue templates.
Single template is cleaner and actually works.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,5 @@
 ## Submission Type
 
-<!-- Check one -->
 - [ ] Plugin
 - [ ] Project
 - [ ] Theme
@@ -11,7 +10,7 @@
 
 **Name:** 
 **Repository:** 
-**Description:** <!-- One sentence -->
+**Description:** 
 
 ## Checklist
 
@@ -20,12 +19,20 @@
 - [ ] Actively maintained
 - [ ] Not a duplicate
 - [ ] Entry added in alphabetical order
-- [ ] Used correct collapsible format
 
-## Entry Added
+## Entry Format
 
-<!-- Paste the entry you added to README.md -->
+Use this format in the appropriate README section:
 
 ```html
-
+<details>
+  <summary><b>Name</b> <img src="https://badgen.net/github/stars/owner/repo" height="14"/> - <i>Short description</i></summary>
+  <blockquote>
+    Full description.
+    <br><br>
+    <a href="https://github.com/owner/repo">🔗 <b>View Repository</b></a>
+  </blockquote>
+</details>
 ```
+
+See [contributing.md](contributing.md) for full instructions.

.github/PULL_REQUEST_TEMPLATE/agent.md

@@ -1,34 +0,0 @@
----
-name: Add Agent
-about: Submit a new agent to the awesome-opencode list
----
-
-## Agent Submission
-
-**Name:** <!-- e.g., my-opencode-agent -->
-**Repository:** <!-- e.g., https://github.com/username/my-opencode-agent -->
-**Description:** <!-- One sentence, max 100 chars -->
-
-## Checklist
-
-- [ ] Agent is relevant to OpenCode
-- [ ] Repository is public and accessible
-- [ ] Agent is actively maintained (commits within last 6 months)
-- [ ] Not a duplicate (checked existing list)
-- [ ] Entry added to README.md in alphabetical order
-- [ ] Used the correct format (see below)
-
-## Entry Format
-
-Add this to the **Agents** section in alphabetical order:
-
-```html
-<details>
-  <summary><b>Agent Name</b> <img src="https://badgen.net/github/stars/owner/repo" height="14"/> - <i>Short description</i></summary>
-  <blockquote>
-    Full description here.
-    <br><br>
-    <a href="https://github.com/owner/repo">🔗 <b>View Repository</b></a>
-  </blockquote>
-</details>
-```

.github/PULL_REQUEST_TEMPLATE/plugin.md

@@ -1,34 +0,0 @@
----
-name: Add Plugin
-about: Submit a new plugin to the awesome-opencode list
----
-
-## Plugin Submission
-
-**Name:** <!-- e.g., opencode-my-plugin -->
-**Repository:** <!-- e.g., https://github.com/username/opencode-my-plugin -->
-**Description:** <!-- One sentence, max 100 chars -->
-
-## Checklist
-
-- [ ] Plugin is relevant to OpenCode
-- [ ] Repository is public and accessible
-- [ ] Plugin is actively maintained (commits within last 6 months)
-- [ ] Not a duplicate (checked existing list)
-- [ ] Entry added to README.md in alphabetical order
-- [ ] Used the correct format (see below)
-
-## Entry Format
-
-Add this to the **Plugins** section in alphabetical order:
-
-```html
-<details>
-  <summary><b>Plugin Name</b> <img src="https://badgen.net/github/stars/owner/repo" height="14"/> - <i>Short description</i></summary>
-  <blockquote>
-    Full description here.
-    <br><br>
-    <a href="https://github.com/owner/repo">🔗 <b>View Repository</b></a>
-  </blockquote>
-</details>
-```

.github/PULL_REQUEST_TEMPLATE/project.md

@@ -1,34 +0,0 @@
----
-name: Add Project
-about: Submit a new project to the awesome-opencode list
----
-
-## Project Submission
-
-**Name:** <!-- e.g., my-opencode-project -->
-**Repository:** <!-- e.g., https://github.com/username/my-opencode-project -->
-**Description:** <!-- One sentence, max 100 chars -->
-
-## Checklist
-
-- [ ] Project is relevant to OpenCode
-- [ ] Repository is public and accessible
-- [ ] Project is actively maintained (commits within last 6 months)
-- [ ] Not a duplicate (checked existing list)
-- [ ] Entry added to README.md in alphabetical order
-- [ ] Used the correct format (see below)
-
-## Entry Format
-
-Add this to the **Projects** section in alphabetical order:
-
-```html
-<details>
-  <summary><b>Project Name</b> <img src="https://badgen.net/github/stars/owner/repo" height="14"/> - <i>Short description</i></summary>
-  <blockquote>
-    Full description here.
-    <br><br>
-    <a href="https://github.com/owner/repo">🔗 <b>View Repository</b></a>
-  </blockquote>
-</details>
-```

.github/PULL_REQUEST_TEMPLATE/resource.md

@@ -1,35 +0,0 @@
----
-name: Add Resource
-about: Submit a new resource to the awesome-opencode list
----
-
-## Resource Submission
-
-**Name:** <!-- e.g., My OpenCode Guide -->
-**URL:** <!-- e.g., https://github.com/username/opencode-config -->
-**Description:** <!-- One sentence, max 100 chars -->
-
-## Checklist
-
-- [ ] Resource is relevant to OpenCode
-- [ ] URL is public and accessible
-- [ ] Not a duplicate (checked existing list)
-- [ ] Entry added to README.md in alphabetical order
-- [ ] Used the correct format (see below)
-
-## Entry Format
-
-Add this to the **Resources** section in alphabetical order:
-
-```html
-<details>
-  <summary><b>Resource Name</b> <img src="https://badgen.net/github/stars/owner/repo" height="14"/> - <i>Short description</i></summary>
-  <blockquote>
-    Full description here.
-    <br><br>
-    <a href="https://github.com/owner/repo">🔗 <b>View Repository</b></a>
-  </blockquote>
-</details>
-```
-
-Note: For non-GitHub resources (guides, articles, etc.), omit the star badge.

.github/PULL_REQUEST_TEMPLATE/theme.md

@@ -1,33 +0,0 @@
----
-name: Add Theme
-about: Submit a new theme to the awesome-opencode list
----
-
-## Theme Submission
-
-**Name:** <!-- e.g., My Awesome Theme -->
-**Repository:** <!-- e.g., https://github.com/username/opencode-theme -->
-**Description:** <!-- One sentence, max 100 chars -->
-
-## Checklist
-
-- [ ] Theme is for OpenCode
-- [ ] Repository is public and accessible
-- [ ] Not a duplicate (checked existing list)
-- [ ] Entry added to README.md in alphabetical order
-- [ ] Used the correct format (see below)
-
-## Entry Format
-
-Add this to the **Themes** section in alphabetical order:
-
-```html
-<details>
-  <summary><b>Theme Name</b> <img src="https://badgen.net/github/stars/owner/repo" height="14"/> - <i>Short description</i></summary>
-  <blockquote>
-    Full description here.
-    <br><br>
-    <a href="https://github.com/owner/repo">🔗 <b>View Repository</b></a>
-  </blockquote>
-</details>
-```