Add Codex model pricing and remove -codex suffix stripping

- Add pricing for gpt-5.1-codex, gpt-5.1-codex-max, gpt-5.1-codex-mini, gpt-5.3-codex
- Fix gpt-5.1-codex-mini/max pricing (values were swapped)
- Remove -codex suffix fallback in normalizeCodexModel to ensure exact pricing lookups
- Bump cost-usage cache schema to v2 to invalidate stale normalized keys

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

Author: xiaoqianWX

Sources/CodexBarCore/Vendored/CostUsage/CostUsageCache.swift

@@ -10,7 +10,7 @@ enum CostUsageCacheIO {
         let root = cacheRoot ?? self.defaultCacheRoot()
         return root
             .appendingPathComponent("cost-usage", isDirectory: true)
-            .appendingPathComponent("\(provider.rawValue)-v1.json", isDirectory: false)
+            .appendingPathComponent("\(provider.rawValue)-v2.json", isDirectory: false)
     }
 
     static func load(provider: UsageProvider, cacheRoot: URL? = nil) -> CostUsageCache {

Sources/CodexBarCore/Vendored/CostUsage/CostUsagePricing.swift

@@ -33,6 +33,18 @@ enum CostUsagePricing {
             inputCostPerToken: 1.25e-6,
             outputCostPerToken: 1e-5,
             cacheReadInputCostPerToken: 1.25e-7),
+        "gpt-5.1-codex": CodexPricing(
+            inputCostPerToken: 1.25e-6,
+            outputCostPerToken: 1e-5,
+            cacheReadInputCostPerToken: 1.25e-7),
+        "gpt-5.1-codex-mini": CodexPricing(
+            inputCostPerToken: 2.5e-7,
+            outputCostPerToken: 2e-6,
+            cacheReadInputCostPerToken: 2.5e-8),
+        "gpt-5.1-codex-max": CodexPricing(
+            inputCostPerToken: 1.25e-6,
+            outputCostPerToken: 1e-5,
+            cacheReadInputCostPerToken: 1.25e-7),
         "gpt-5.2": CodexPricing(
             inputCostPerToken: 1.75e-6,
             outputCostPerToken: 1.4e-5,
@@ -41,6 +53,10 @@ enum CostUsagePricing {
             inputCostPerToken: 1.75e-6,
             outputCostPerToken: 1.4e-5,
             cacheReadInputCostPerToken: 1.75e-7),
+        "gpt-5.3-codex": CodexPricing(
+            inputCostPerToken: 1.75e-6,
+            outputCostPerToken: 1.4e-5,
+            cacheReadInputCostPerToken: 1.75e-7),
     ]
 
     private static let claude: [String: ClaudePricing] = [
@@ -161,10 +177,6 @@ enum CostUsagePricing {
         if trimmed.hasPrefix("openai/") {
             trimmed = String(trimmed.dropFirst("openai/".count))
         }
-        if let codexRange = trimmed.range(of: "-codex") {
-            let base = String(trimmed[..<codexRange.lowerBound])
-            if self.codex[base] != nil { return base }
-        }
         return trimmed
     }
 

Tests/CodexBarTests/CostUsagePricingTests.swift

@@ -5,9 +5,7 @@ import Testing
 struct CostUsagePricingTests {
     @Test
     func normalizesCodexModelVariants() {
-        #expect(CostUsagePricing.normalizeCodexModel("openai/gpt-5-codex") == "gpt-5")
-        #expect(CostUsagePricing.normalizeCodexModel("gpt-5.2-codex") == "gpt-5.2")
-        #expect(CostUsagePricing.normalizeCodexModel("gpt-5.1-codex-max") == "gpt-5.1")
+        #expect(CostUsagePricing.normalizeCodexModel("openai/gpt-5-codex") == "gpt-5-codex")
     }
 
     @Test