FN-5824: add MiniMax-M3 support examples

Update MiniMax model references to MiniMax-M3 across runtime UI, docs, and tests.

- Update Hermes and OpenClaw model input placeholders to show MiniMax-M3 examples
- Refresh Hermes runtime README and CLI parsing comment examples to MiniMax-M3
- Adjust dashboard usage test expectations from MiniMax-M* to MiniMax-M3
- Add Hermes runtime adapter coverage to ensure MiniMax-M3 is passed through unchanged

Files changed:
 packages/dashboard/app/components/HermesRuntimeCard.tsx          | 2 +-
 packages/dashboard/app/components/OpenClawRuntimeCard.tsx        | 2 +-
 packages/dashboard/src/__tests__/usage.test.ts                   | 4 ++--
 plugins/fusion-plugin-hermes-runtime/README.md                   | 2 +-
 .../src/__tests__/runtime-adapter.test.ts                        | 9 +++++++++
 plugins/fusion-plugin-hermes-runtime/src/cli-spawn.ts            | 2 +-
 6 files changed, 15 insertions(+), 6 deletions(-)

Fusion-Task-Id: FN-5824

Fusion-Task-Lineage: d9524280-be33-49f8-83d8-ac9b963164f8

plugins/fusion-plugin-hermes-runtime/src/__tests__/runtime-adapter.test.ts

@@ -137,6 +137,15 @@ describe("HermesRuntimeAdapter — describeModel", () => {
     expect(adapter.describeModel(session)).toBe("hermes/MiniMax-M2.7");
   });
 
+  it("passes MiniMax-M3 through unchanged", async () => {
+    const adapter = new HermesRuntimeAdapter({ model: "MiniMax-M3" });
+    const { session } = await adapter.createSession({
+      cwd: "/repo",
+      systemPrompt: "sys",
+    });
+    expect(adapter.describeModel(session)).toBe("hermes/MiniMax-M3");
+  });
+
   it("returns plain 'hermes' when neither set", async () => {
     const adapter = new HermesRuntimeAdapter({});
     const { session } = await adapter.createSession({