Document the ViGet API in full and take zod 4.6.7 for eslint

The documentation check of the backend found the private members of
ViGet/ without a summary and no page for its namespace:
- Summaries for every field and helper method of the catalog, the
  descriptor, the properties reader, publishing and the endpoints.
- docs/api/namespaces/Progmasoft.Progmaweb.Api.ViGet.md describes the
  namespace.
- The two regular expressions of TazelPluginDescriptor are excluded from the
  reference like AccountNamePolicy.CanonicalPattern: the generator replaces
  their comment with its own.

The dependency audit found GHSA for zod < 4.6.6, which can exhaust memory
while validating oversized constrained collections. Only
eslint-plugin-react-hooks reaches it, and it accepts any zod 4, so an
override takes 4.6.7 until the plugin resolves a fixed release itself.
pnpm audit --audit-level high finds nothing.

1 files changed, 6 insertions, 0 deletions

diff --git a/apps/api/ViGet/JavaProperties.cs b/apps/api/ViGet/JavaProperties.cs
index e55991e..1b42f20 100644
--- a/apps/api/ViGet/JavaProperties.cs
+++ b/apps/api/ViGet/JavaProperties.cs
@@ -93,10 +93,16 @@ internal static class JavaProperties
         }
     }
 
+    /// <summary>Whether a character is white space of the format: space, tab or form feed.</summary>
     private static bool IsBlank(char character) => character is ' ' or '\t' or '\f';
 
+    /// <summary>Whether an unescaped character ends a key.</summary>
     private static bool IsKeyEnd(char character) => character is '=' or ':' || IsBlank(character);
 
+    /// <summary>Resolves the escapes of a key or a value.</summary>
+    /// <param name="text">The text as the file writes it.</param>
+    /// <returns>The text it stands for.</returns>
+    /// <exception cref="FormatException">A <c>\u</c> escape is not followed by four hexadecimal digits.</exception>
     private static string Unescape(string text)
     {
         StringBuilder result = new(text.Length);