📝 Refresh license year, backlog notes and JSDoc

Bump the copyright to 2026 in LICENSE and README, add the
comparison-section notes to the backlog, and trim the primitive-union
factory JSDoc now that the universe rules live in README § Caveats.

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2025 tmu
+Copyright (c) 2026 tmu
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -141,7 +141,7 @@ cover. The type-level cost of supporting open universes is recorded in
 
 ## License
 
-MIT © 2025 tmu. See [LICENSE](./LICENSE).
+MIT © 2026 tmu. See [LICENSE](./LICENSE).
 
 ## Contributing
 

backlog.tasks

@@ -28,6 +28,8 @@ Documentation:
     → previous Examples order: literal/exhaustive, typeof, structural/discriminated unions, when, any
 ☐ Create `examples/` directory with runnable snippets
 ☐ Add comparison section vs. other TS pattern-matching libs in Readme.md
+    ☐ Why do we do this? => exhaustiveness encoded type safe
+    ☐ Why this form? little syntax, data last, very small, autocomplete, strict typing in the handler; for more features use ts-pattern
 ☐ Write migration guide for users coming from discriminated unions
 ☐ Create backlog tasks for implementation
 ☐ Validate code fences in Markdown (start with README.md) — compile the TypeScript examples against `src/` so the docs cannot drift from the API

src/primitive-union.ts

@@ -97,16 +97,15 @@ const dispatch =
         );
 
 /**
- * Create a matcher for a finite primitive universe, with one common return type.
+ * Create a matcher for a finite primitive universe, with one common return
+ * type.
  *
  * Use it when the value itself is the union (`"yes" | "no"`) and every handler
  * returns the same type.
  *
- * The universe `T` must be a finite union of literals with no
- * value/stringification collision: broad members (`string`, `number`, template
- * literals) and `true | "true"` / `1 | "1"` are rejected at the call site. The
- * returned builder takes a handler map keyed by the members; supplying a second
- * fallback argument allows a partial map and receives the unhandled remainder.
+ * The returned builder takes a handler map keyed by the members; supplying a
+ * second fallback argument allows a partial map and receives the unhandled
+ * remainder.
  *
  * @typeParam T - The finite universe of primitive members to match.
  * @returns A builder for the handler map, or the handler map plus a fallback.