feat(pricing): add display pricing for Qwen 3.8 Flash and GLM 5.3 Flash

Qwen/Qwen3.8-Flash lists $0.16 input, $0.47 output, and $0.016 cache read
per million tokens, and z-ai/glm-5.3-flash lists $0.15, $0.50, and $0.03;
the official pricing page documents no cache-write rate for either model.

tests/fixtures/commandcode-model-ids.json

@@ -24,6 +24,7 @@
     "moonshotai/Kimi-K2.7-Code-Highspeed",
     "moonshotai/Kimi-K2.6",
     "moonshotai/Kimi-K2.5",
+    "z-ai/glm-5.3-flash",
     "zai-org/GLM-5.3",
     "zai-org/GLM-5.2",
     "zai-org/GLM-5.2-Fast",
@@ -36,6 +37,7 @@
     "xiaomi/mimo-v2.5",
     "Qwen/Qwen3.8-Max",
     "Qwen/Qwen3.8-27B",
+    "Qwen/Qwen3.8-Flash",
     "Qwen/Qwen3.7-Max",
     "Qwen/Qwen3.7-Plus",
     "Qwen/Qwen3.7-Flash",

tests/fixtures/commandcode-pricing.json

@@ -19,6 +19,7 @@
     "moonshotai/Kimi-K2.7-Code-Highspeed": [1.9, 8, 0.38, 0],
     "moonshotai/Kimi-K2.6": [0.95, 4, 0.16, 0],
     "moonshotai/Kimi-K2.5": [0.6, 3, 0.1, 0],
+    "z-ai/glm-5.3-flash": [0.15, 0.5, 0.03, 0],
     "zai-org/GLM-5.3": [1.4, 4.4, 0.26, 0],
     "zai-org/GLM-5.2": [1.4, 4.4, 0.26, 0],
     "zai-org/GLM-5.2-Fast": [3, 10.25, 0.5, 0],
@@ -31,6 +32,7 @@
     "xiaomi/mimo-v2.5": [0.14, 0.28, 0.0028, 0],
     "Qwen/Qwen3.8-Max": [2, 6, 0.25, 2.5],
     "Qwen/Qwen3.8-27B": [0.4, 3, 0.04, 0],
+    "Qwen/Qwen3.8-Flash": [0.16, 0.47, 0.016, 0],
     "Qwen/Qwen3.7-Max": [2.5, 7.5, 0.5, 3.13],
     "Qwen/Qwen3.7-Plus": [0.4, 1.6, 0.08, 0.5],
     "Qwen/Qwen3.7-Flash": [0.03, 0.13, 0.006, 0.038],

tests/test-pricing.ts

@@ -144,6 +144,18 @@ describe("MODEL_COSTS pricing overlay", () => {
       cacheRead: 0.04,
       cacheWrite: 0,
     })
+    assertCost("Qwen/Qwen3.8-Flash", {
+      input: 0.16,
+      output: 0.47,
+      cacheRead: 0.016,
+      cacheWrite: 0,
+    })
+    assertCost("z-ai/glm-5.3-flash", {
+      input: 0.15,
+      output: 0.5,
+      cacheRead: 0.03,
+      cacheWrite: 0,
+    })
     assertCost("google/gemini-3.7-flash", {
       input: 0.75,
       output: 3.75,