feat: Aggregator hubs for quote/tick quantization

.vscode/settings.json

@@ -1,7 +1,12 @@
 {
   "[markdown]": {
     "editor.defaultFormatter": "DavidAnson.vscode-markdownlint",
+    "editor.formatOnSave": true,
+    "editor.codeActionsOnSave": {
+      "source.fixAll.markdownlint": "explicit"
+    }
   },
+  "chat.useAgentSkills": true,
   "chat.useAgentsMdFile": true,
   "chat.useNestedAgentsMdFiles": true,
   "chat.customAgentInSubagent.enabled": true,

.vscode/tasks.json

@@ -79,19 +79,15 @@
   ],
   // defaults
   "group": "none",
+  "options": {
+    "cwd": "${workspaceFolder}"
+  },
   "presentation": {
     "clear": true,
-    "echo": true,
     "panel": "dedicated",
-    "focus": true,
-    "reveal": "always",
-    "revealProblems": "onProblem",
     "showReuseMessage": false
   },
   "problemMatcher": [],
-  "options": {
-    "cwd": "${workspaceFolder}"
-  },
   // tasks
   "tasks": [
     {
@@ -209,31 +205,27 @@
       "detail": "Clean build outputs (bin/obj) for solution",
       "type": "shell",
       "command": "dotnet clean -v minimal --nologo && dotnet clean -c Release -v minimal --nologo",
-      "group": "build",
       "problemMatcher": "$msCompile"
     },
     {
       "label": "Delete: Temporary caches",
       "detail": "Delete bin, obj, node_modules, other caches, and lock files",
       "type": "shell",
-      "command": "bash tools/scripts/clean.sh",
-      "group": "build",
+      "command": "bash tools/scripts/dotnet-clean.sh",
       "problemMatcher": "$msCompile"
     },
     {
       "label": "Delete: Temporary caches (and restore)",
       "detail": "Delete temporary caches then restore",
       "type": "shell",
-      "command": "bash tools/scripts/clean.sh && dotnet restore --force-evaluate",
-      "group": "build",
+      "command": "bash tools/scripts/dotnet-clean.sh && dotnet restore --force-evaluate",
       "problemMatcher": "$msCompile"
     },
     {
       "label": "Delete: Temporary caches (and build)",
       "detail": "Delete temporary caches then rebuild",
       "type": "shell",
-      "command": "bash tools/scripts/clean.sh && dotnet build --no-incremental",
-      "group": "build",
+      "command": "bash tools/scripts/dotnet-clean.sh && dotnet build --no-incremental",
       "problemMatcher": "$msCompile"
     },
     {
@@ -299,7 +291,11 @@
       "dependsOn": "Install: .NET tools",
       "dependsOrder": "sequence",
       "group": "test",
-      "problemMatcher": "$msCompile"
+      "problemMatcher": "$msCompile",
+      "presentation": {
+        "clear": true,
+        "revealProblems": "onProblem"
+      }
     },
     {
       "label": "Lint: .NET Roslynator (fix)",

src/_common/Quotes/ITick.cs

@@ -0,0 +1,24 @@
+namespace Skender.Stock.Indicators;
+
+/// <summary>
+/// Tick interface for raw market tick data.
+/// This represents a single trade or quote event with price and volume at a specific timestamp.
+/// </summary>
+public interface ITick : IReusable
+{
+    /// <summary>
+    /// Tick price
+    /// </summary>
+    decimal Price { get; }
+
+    /// <summary>
+    /// Tick volume (quantity traded)
+    /// </summary>
+    decimal Volume { get; }
+
+    /// <summary>
+    /// Optional unique execution ID for duplicate detection.
+    /// When null, duplicates are assessed by timestamp only.
+    /// </summary>
+    string? ExecutionId { get; }
+}