feat(prompts): externalize prompt kinds with defaults and token renderer

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/ClaudeDo.Data.Tests/PromptFilesTests.cs

@@ -0,0 +1,46 @@
+using ClaudeDo.Data;
+
+namespace ClaudeDo.Data.Tests;
+
+public class PromptFilesTests
+{
+    [Fact]
+    public void RenderTemplate_replaces_known_tokens()
+    {
+        var outp = PromptFiles.RenderTemplate(
+            "Plan for {date}, cap {maxTasks}.",
+            new Dictionary<string, string> { ["date"] = "2026-06-04", ["maxTasks"] = "5" });
+        Assert.Equal("Plan for 2026-06-04, cap 5.", outp);
+    }
+
+    [Fact]
+    public void RenderTemplate_leaves_unknown_braces_intact()
+    {
+        var outp = PromptFiles.RenderTemplate(
+            "## {Wochentag}, {dd.MM.yyyy} — {start}",
+            new Dictionary<string, string> { ["start"] = "01.06.2026" });
+        Assert.Equal("## {Wochentag}, {dd.MM.yyyy} — 01.06.2026", outp);
+    }
+
+    [Fact]
+    public void DefaultFor_system_mentions_blocked_marker_and_scope()
+    {
+        var d = PromptFiles.DefaultFor(PromptKind.System);
+        Assert.Contains("CLAUDEDO_BLOCKED:", d);
+        Assert.Contains("unattended", d, StringComparison.OrdinalIgnoreCase);
+    }
+
+    [Fact]
+    public void DefaultFor_planning_initial_has_title_and_description_tokens()
+    {
+        var d = PromptFiles.DefaultFor(PromptKind.PlanningInitial);
+        Assert.Contains("{title}", d);
+        Assert.Contains("{description}", d);
+    }
+
+    [Fact]
+    public void PathFor_planning_is_planning_system_file()
+    {
+        Assert.EndsWith("planning-system.md", PromptFiles.PathFor(PromptKind.Planning));
+    }
+}