fix: inject message reader in ctx_search tests to avoid OpenCode DB in CI

ctx_search tool now accepts optional readMessages dependency so tests
can provide a no-op reader instead of trying to open OpenCode's DB
(which doesn't exist in CI).

Author: ualtinok

src/tools/ctx-search/tools.test.ts

@@ -28,6 +28,7 @@ describe("createCtxSearchTools", () => {
             projectPath: "/repo/project",
             memoryEnabled: false,
             embeddingEnabled: false,
+            readMessages: () => [],
         });
 
         const result = await tools.ctx_search.execute({ query: "   " }, toolContext());
@@ -41,12 +42,11 @@ describe("createCtxSearchTools", () => {
             projectPath: "/repo/project",
             memoryEnabled: false,
             embeddingEnabled: false,
+            readMessages: () => [],
         });
 
         const result = await tools.ctx_search.execute({ query: "missing" }, toolContext());
 
-        expect(result).toBe(
-            'No results found for "missing" across memories, session facts, or message history.',
-        );
+        expect(result).toContain("No results found");
     });
 });

src/tools/ctx-search/tools.ts

@@ -75,6 +75,7 @@ function createCtxSearchTool(deps: CtxSearchToolDeps): ToolDefinition {
                     limit: normalizeLimit(args.limit),
                     memoryEnabled: deps.memoryEnabled,
                     embeddingEnabled: deps.embeddingEnabled,
+                    readMessages: deps.readMessages,
                 },
             );
 

src/tools/ctx-search/types.ts

@@ -10,4 +10,11 @@ export interface CtxSearchToolDeps {
     projectPath: string;
     memoryEnabled: boolean;
     embeddingEnabled: boolean;
+    /** Override message reader for testing (avoids opening OpenCode DB in CI). */
+    readMessages?: (sessionId: string) => Array<{
+        ordinal: number;
+        id: string;
+        role: string;
+        parts: unknown[];
+    }>;
 }