Collect findings from other people's writing, with sources

The skill so far only held what we broke ourselves. Most of what is worth
knowing about a new SDK is found rather than suffered — release notes,
other people's articles — and that deserves a place too, on terms that
stay fair to whoever wrote it.

So: entries in our own words, source named and linked, and the one thing
no external article can supply — what it would replace in our code and
whether it is genuinely a step forward. Attribution answers plagiarism,
not copyright, so nothing is pasted; an API signature is a fact, the
paragraph explaining it is not ours to take.

First four entries come from Natalia Panferova's writing at nilcoalescing
.com: the close button role and concentric corners, both of which replace
things we hand-built; ScrollPosition, which replaces one wrapper view;
and the iOS 27 toolbar APIs, which we cannot use at our deployment target
but which would delete a workaround the day we can.

A LICENSE was overdue and now says plainly what is ours, what is Apple's
and stays out of the repository, and what belongs to the authors we cite.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -11,14 +11,23 @@
     {
       "name": "pdat-swift-practice",
       "source": "./pdat-swift-practice",
-      "description": "Practices for SwiftUI, Core Data, XcodeGen and Swift Testing that come from production incidents rather than documentation.",
-      "version": "0.1.0",
+      "description": "Curated Apple platform findings with sources, plus practices learned from production incidents.",
+      "version": "0.2.0",
       "author": {
         "name": "PDAT s.r.o."
       },
       "license": "MIT",
       "category": "development",
-      "keywords": ["swift", "swiftui", "ios", "macos", "watchos", "core-data", "xcodegen", "swift-testing"]
+      "keywords": [
+        "swift",
+        "swiftui",
+        "ios",
+        "macos",
+        "watchos",
+        "core-data",
+        "xcodegen",
+        "swift-testing"
+      ]
     }
   ]
 }