test(skill-memory): assert resolvedPath for the project-skill plain-path provenance case

cubic P2 (PR cortexkit#181): the 'PLAIN filesystem path for a PROJECT skill' test
asserted tier/skillSource but not resolvedPath — the only plain-path
project-skill test, so a path-join regression (missing /SKILL.md suffix,
bad concat) would go undetected. Added the resolvedPath assertion to match
the coverage pattern of every sibling test.

Author: Tehan

packages/plugin/src/features/magic-context/skill-memory/provenance.test.ts

@@ -104,6 +104,9 @@ describe("parseSkillProvenance", () => {
     test("parses a PLAIN filesystem path for a PROJECT skill", () => {
         const output = `Base directory for this skill: ${HOME}/projects/foo/.opencode/skills/my-skill`;
         const result = parseSkillProvenance(output, "my-skill");
+        expect(result!.resolvedPath).toBe(
+            `${HOME}/projects/foo/.opencode/skills/my-skill/SKILL.md`,
+        );
         expect(result!.tier).toBe("project");
         expect(result!.skillSource).toBe("opencode-project");
     });