feat: add example scripts for argparse, bytes, dataset, html, markdown, uuid, wdantic, and web chat modules

Add comprehensive demo scripts showcasing the usage of multiple Wren modules including argument parsing, byte manipulation, in-memory dataset operations, HTML encoding/slugification, markdown-to-HTML conversion, UUID generation/validation, schema validation with wdantic, and a full web chat application with REST endpoints.

test/html/params.wren

@@ -0,0 +1,12 @@
+// retoor <retoor@molodetz.nl>
+
+import "html" for Html
+
+var encoded = Html.encodeParams({"name": "John Doe", "age": 30})
+System.print(encoded.contains("name=John+Doe")) // expect: true
+System.print(encoded.contains("age=30")) // expect: true
+System.print(encoded.contains("&")) // expect: true
+
+var decoded = Html.decodeParams("name=John+Doe&age=30")
+System.print(decoded["name"]) // expect: John Doe
+System.print(decoded["age"]) // expect: 30

test/html/quote.wren

@@ -0,0 +1,13 @@
+// retoor <retoor@molodetz.nl>
+
+import "html" for Html
+
+System.print(Html.quote("<script>")) // expect: &lt;script&gt;
+System.print(Html.quote("a & b")) // expect: a &amp; b
+System.print(Html.quote("\"quoted\"")) // expect: &quot;quoted&quot;
+System.print(Html.quote("it's")) // expect: it&#39;s
+System.print(Html.quote("normal text")) // expect: normal text
+
+System.print(Html.unquote("&lt;script&gt;")) // expect: <script>
+System.print(Html.unquote("a &amp; b")) // expect: a & b
+System.print(Html.unquote("&quot;quoted&quot;")) // expect: "quoted"

test/html/slugify.wren

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+// retoor <retoor@molodetz.nl>
+
+import "html" for Html
+
+System.print(Html.slugify("Hello World")) // expect: hello-world
+System.print(Html.slugify("This is a TEST")) // expect: this-is-a-test
+System.print(Html.slugify("foo---bar")) // expect: foo-bar
+System.print(Html.slugify("  spaces  ")) // expect: spaces
+System.print(Html.slugify("test123")) // expect: test123
+System.print(Html.slugify("UPPERCASE")) // expect: uppercase

test/html/urldecode.wren

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+// retoor <retoor@molodetz.nl>
+
+import "html" for Html
+
+System.print(Html.urldecode("hello+world")) // expect: hello world
+
+var encoded1 = "foo" + "\%3D" + "bar"
+System.print(Html.urldecode(encoded1)) // expect: foo=bar
+
+var encoded2 = "a" + "\%26" + "b"
+System.print(Html.urldecode(encoded2)) // expect: a&b
+
+System.print(Html.urldecode("test")) // expect: test
+System.print(Html.urldecode("")) // expect:

test/html/urlencode.wren

@@ -0,0 +1,9 @@
+// retoor <retoor@molodetz.nl>
+
+import "html" for Html
+
+System.print(Html.urlencode("hello world")) // expect: hello+world
+System.print(Html.urlencode("foo=bar")) // expect: foo%3Dbar
+System.print(Html.urlencode("a&b")) // expect: a%26b
+System.print(Html.urlencode("test")) // expect: test
+System.print(Html.urlencode("")) // expect: