Remove URL install source type — winget and Microsoft Store only (#85)

The gallery now only accepts extensions distributed via winget or the
Microsoft Store, so users always get a verified, packaged install path.

Schemas
- Drop the `url`/`uri` branch from `installSources.oneOf` in both
  extension.schema.json and gallery.schema.json.

Docs
- README, CONTRIBUTING, and the PR template no longer reference a
  custom download URL as a supported install source.

Extension data
- Strip `url`-type entries from 26 extensions that also list a winget
  or Microsoft Store source (formatting preserved).
- Remove the 5 extensions whose only install source was a URL:
    * atkaksoy501/portpilot
    * dlnilsson/cmdpal-yubico-oath-otp
    * kusutori/bitwarden-for-command-palette
    * thestarslayer/define-word-extension
    * weimin96/translation-extension
  Their authors are encouraged to publish to winget or the Microsoft
  Store and resubmit.

Regenerated extensions.json — 59 listed extensions, all with only
winget and/or msstore sources.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: niels9001

.github/PULL_REQUEST_TEMPLATE.md

@@ -10,7 +10,7 @@ Please fill out the checklist below to help us review your PR quickly.
 - [ ] The `id` field in my `extension.json` matches my folder path (`author.extension-name`)
 - [ ] I have added an icon file (PNG or JPG, under 100 KB)
 - [ ] The `icon` field in `extension.json` matches my icon filename
-- [ ] My extension is available at the install source I specified (winget/MS Store/URL)
+- [ ] My extension is available at the install source I specified (winget/MS Store)
 - [ ] I have read the [Contributing Guide](../docs/CONTRIBUTING.md)
 
 ### Additional context

.github/schemas/extension.schema.json

@@ -133,14 +133,6 @@
             },
             "required": ["type", "id"],
             "additionalProperties": false
-          },
-          {
-            "properties": {
-              "type": { "const": "url" },
-              "uri": { "type": "string", "description": "Direct download or release page URL.", "format": "uri", "examples": ["https://github.com/jiripolasek/MediaControlsExtension/releases"] }
-            },
-            "required": ["type", "uri"],
-            "additionalProperties": false
           }
         ]
       }

.github/schemas/gallery.schema.json

@@ -146,14 +146,6 @@
                 },
                 "required": ["type", "id"],
                 "additionalProperties": false
-              },
-              {
-                "properties": {
-                  "type": { "const": "url" },
-                  "uri": { "type": "string", "description": "Direct download or release page URL.", "format": "uri" }
-                },
-                "required": ["type", "uri"],
-                "additionalProperties": false
               }
             ]
           }

README.md

@@ -18,15 +18,15 @@ This repo helps you get your extension in front of millions of Command Palette u
 
 🔍 **Discoverable by millions** — your extension shows up right inside Command Palette
 
-📦 **Host it your way** — publish through winget, the Microsoft Store, or your own download link — you stay in control
+📦 **Host it your way** — publish through winget or the Microsoft Store — you stay in control
 
 🌍 **Open-source & community-driven** — join a growing ecosystem of developers extending Windows productivity
 
 <br/>
 
 ## ⚡ How it works
 
-1. **Build and publish your extension** — develop a Command Palette extension and ship it on the Microsoft Store, winget, or your own download URL.
+1. **Build and publish your extension** — develop a Command Palette extension and ship it on the Microsoft Store or winget.
 2. **Open a PR in this repo** — add a folder with your `extension.json` (and icon) pointing to your install source.
 3. **Get reviewed** — CI validates your submission automatically and the Command Palette team reviews the PR.
 4. **Ship to users** — once merged, your extension appears in the Command Palette gallery and users can install it directly from your chosen source.

docs/CONTRIBUTING.md

@@ -15,7 +15,6 @@ Before you begin, make sure you have:
 - Your extension **already published** on one of the supported install sources:
   - [winget](https://github.com/microsoft/winget-pkgs) (Windows Package Manager)
   - [Microsoft Store](https://apps.microsoft.com/)
-  - Direct download or release page URL
 
 ## Step-by-step submission guide
 
@@ -106,7 +105,6 @@ Each object in the `installSources` array has a `type` and a type-specific field
 |------|-------|-------------|---------|
 | `winget` | `id` | The winget package identifier | `"Publisher.PackageName"` |
 | `msstore` | `id` | Microsoft Store product ID | `"9n3bq81g19k7"` |
-| `url` | `uri` | Direct download or release page URL | `"https://github.com/publisher/extension/releases"` |
 
 #### Allowed categories