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.SqlBreakdown/Classes/RawSqlBreakdown.cs

@@ -20,7 +20,7 @@ public class RawSqlBreakdown : ISqlBreakdown
     /// <summary>
     /// Gets or sets the setup clauses to execute before the main statement.
     /// </summary>
-    public List<string> SetupClauses { get; set; } = new List<string>();
+    public List<string> SetupClauses { get; set; } = [];
 
     /// <summary>
     /// Gets a value indicating whether setup clauses are being used.
@@ -30,7 +30,7 @@ public class RawSqlBreakdown : ISqlBreakdown
     /// <summary>
     /// Gets or sets the finish clauses to execute after the main statement.
     /// </summary>
-    public ArrayList FinishClauses { get; set; } = new ArrayList();
+    public ArrayList FinishClauses { get; set; } = [];
 
     /// <summary>
     /// Gets a value indicating whether finish clauses are being used.

src/Strata.SqlTools.SqlBreakdown/Classes/SqlBreakdownBase.cs

@@ -14,8 +14,8 @@ public abstract class SqlBreakdownBase : ISqlBreakdown
     /// </summary>
     protected SqlBreakdownBase()
     {
-        SetupClauses = new List<string>();
-        FinishClauses = new ArrayList();
+        SetupClauses = [];
+        FinishClauses = [];
     }
 
     /// <summary>

src/Strata.SqlTools.SqlBreakdown/Classes/SqlBreakdownCollection.cs

@@ -22,7 +22,7 @@ public class SqlBreakdownCollection : ICollection<ISqlBreakdown>
     /// </summary>
     public SqlBreakdownCollection()
     {
-        _breakdowns = new List<ISqlBreakdown>();
+        _breakdowns = [];
     }
 
     /// <summary>

src/Strata.SqlTools.SqlBreakdown/Classes/SqlFilter.cs

@@ -18,7 +18,7 @@ public class SqlFilter : ISqlAppendable
     public SqlFilter()
     {
         _sqlExpression = new StringBuilder();
-        _parameterValues = new Dictionary<string, object>();
+        _parameterValues = [];
     }
 
     /// <summary>
@@ -29,7 +29,7 @@ public class SqlFilter : ISqlAppendable
     public SqlFilter(string expression, params object[] parameterNameValue)
     {
         _sqlExpression = new StringBuilder(expression);
-        _parameterValues = new Dictionary<string, object>();
+        _parameterValues = [];
 
         if (parameterNameValue.Length % 2 != 0)
         {
@@ -49,7 +49,7 @@ public class SqlFilter : ISqlAppendable
     public SqlFilter(SqlFilter filter)
     {
         _sqlExpression = new StringBuilder(filter.SqlExpression);
-        _parameterValues = new Dictionary<string, object>();
+        _parameterValues = [];
 
         foreach (var key in filter.ParameterValues.Keys)
         {

src/Strata.SqlTools.SqlBreakdown/Classes/SqlFrom.cs

@@ -18,7 +18,7 @@ public class SqlFrom
     public SqlFrom(string tableExpression, string tableAlias)
     {
         _firstTable = new SqlTable(tableExpression, tableAlias);
-        _joins = new List<SqlJoin>();
+        _joins = [];
     }
 
     /// <summary>