chore(sonar): apply collection-expression syntax across all sites (IDE0028)

Manual sweep of all 42 IDE0028 sites flagged by SonarQube — `dotnet format
analyzers --diagnostics IDE0028` declined to fix these (no .editorconfig
opt-in for `dotnet_style_prefer_collection_expression`), so applied by
hand. The repo already targets `<LangVersion>latest</LangVersion>` on
net8.0, so C# 12 collection expressions are available.

Pattern: `new List<T>()` / `new Dictionary<K,V>()` / `new ArrayList()` /
`new()` -> `[]` for empty; `new List<T> { ... }` -> `[...]` for literal.

24 files touched in src/{EFCore, LinqToSql, Query, Snowflake, SqlBreakdown,
SqlServer}; tests untouched (no IDE0028 sites in test code).

Build clean (35 warnings unchanged from baseline, 0 errors). All tests
remain green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/Strata.SqlTools.SqlServer/Breakdowns/ProcedureBreakdown.cs

@@ -20,7 +20,7 @@ public class ProcedureBreakdown : SqlBreakdownBase
     {
         Parser = new StatementParser();
         ProcedureName = new SqlClause();
-        Parameters = new Dictionary<string, string>();
+        Parameters = [];
     }
 
     /// <summary>
@@ -41,7 +41,7 @@ public class ProcedureBreakdown : SqlBreakdownBase
     /// <param name="parameters">The parameters dictionary (parameter name -> value expression).</param>
     public ProcedureBreakdown(string procedureName, Dictionary<string, string> parameters) : this(procedureName)
     {
-        Parameters = parameters ?? new Dictionary<string, string>();
+        Parameters = parameters ?? [];
     }
 
     /// <summary>