fix(core): allow flexible runtime version format in schema

- Change RuntimeVersion from literal "v1.0" to pattern `v${number}.${number}`
- Split runtime-version E2E tests to use separate config for future version tests
- This allows testing version validation failures without breaking other tests

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: FL4TLiN3

e2e/experts/runtime-version-future.toml

@@ -0,0 +1,34 @@
+model = "claude-sonnet-4-5"
+
+[provider]
+providerName = "anthropic"
+
+envPath = [".env", ".env.local"]
+
+# Expert requiring future version (validation failure)
+[experts."e2e-runtime-future"]
+version = "1.0.0"
+minRuntimeVersion = "v99.0"
+instruction = "Call attemptCompletion with result 'OK'"
+
+[experts."e2e-runtime-future".skills."@perstack/base"]
+type = "mcpStdioSkill"
+command = "npx"
+packageName = "@perstack/base"
+pick = ["attemptCompletion"]
+
+# Chain with nested future version: root(v1.0) -> nested(v99.0)
+[experts."e2e-runtime-chain-future"]
+version = "1.0.0"
+minRuntimeVersion = "v1.0"
+instruction = """
+1. Delegate to "e2e-runtime-future" with "test"
+2. When done, call attemptCompletion with result "OK"
+"""
+delegates = ["e2e-runtime-future"]
+
+[experts."e2e-runtime-chain-future".skills."@perstack/base"]
+type = "mcpStdioSkill"
+command = "npx"
+packageName = "@perstack/base"
+pick = ["attemptCompletion"]

e2e/experts/runtime-version.toml

@@ -28,18 +28,6 @@ command = "npx"
 packageName = "@perstack/base"
 pick = ["attemptCompletion"]
 
-# Expert requiring future version (validation failure)
-[experts."e2e-runtime-future"]
-version = "1.0.0"
-minRuntimeVersion = "v99.0"
-instruction = "Call attemptCompletion with result 'OK'"
-
-[experts."e2e-runtime-future".skills."@perstack/base"]
-type = "mcpStdioSkill"
-command = "npx"
-packageName = "@perstack/base"
-pick = ["attemptCompletion"]
-
 # 3-level chain: root(v1.0) -> level1(v1.0) -> level2(v1.0)
 [experts."e2e-runtime-chain-ok"]
 version = "1.0.0"
@@ -81,19 +69,3 @@ type = "mcpStdioSkill"
 command = "npx"
 packageName = "@perstack/base"
 pick = ["attemptCompletion"]
-
-# Chain with nested future version: root(v1.0) -> nested(v99.0)
-[experts."e2e-runtime-chain-future"]
-version = "1.0.0"
-minRuntimeVersion = "v1.0"
-instruction = """
-1. Delegate to "e2e-runtime-future" with "test"
-2. When done, call attemptCompletion with result "OK"
-"""
-delegates = ["e2e-runtime-future"]
-
-[experts."e2e-runtime-chain-future".skills."@perstack/base"]
-type = "mcpStdioSkill"
-command = "npx"
-packageName = "@perstack/base"
-pick = ["attemptCompletion"]

e2e/perstack-runtime/runtime-version.test.ts

@@ -8,14 +8,15 @@
  * - 3-level delegation chain with all v1.0
  * - Nested delegate with future version requirement
  *
- * TOML: e2e/experts/runtime-version.toml
+ * TOML: e2e/experts/runtime-version.toml, e2e/experts/runtime-version-future.toml
  */
 import { describe, expect, it } from "vitest"
 import { assertEventSequenceContains } from "../lib/assertions.js"
 import { filterEventsByType } from "../lib/event-parser.js"
 import { runRuntimeCli, withEventParsing } from "../lib/runner.js"
 
 const RUNTIME_VERSION_CONFIG = "./e2e/experts/runtime-version.toml"
+const RUNTIME_VERSION_FUTURE_CONFIG = "./e2e/experts/runtime-version-future.toml"
 const LLM_TIMEOUT = 120000
 const LLM_EXTENDED_TIMEOUT = 300000
 
@@ -56,7 +57,7 @@ describe.concurrent("Runtime Version Validation", () => {
     "should fail when expert requires future version",
     async () => {
       const cmdResult = await runRuntimeCli(
-        ["run", "--config", RUNTIME_VERSION_CONFIG, "e2e-runtime-future", "test"],
+        ["run", "--config", RUNTIME_VERSION_FUTURE_CONFIG, "e2e-runtime-future", "test"],
         { timeout: LLM_TIMEOUT },
       )
       expect(cmdResult.exitCode).toBe(1)
@@ -84,7 +85,7 @@ describe.concurrent("Runtime Version Validation", () => {
     "should fail when nested delegate requires future version",
     async () => {
       const cmdResult = await runRuntimeCli(
-        ["run", "--config", RUNTIME_VERSION_CONFIG, "e2e-runtime-chain-future", "test"],
+        ["run", "--config", RUNTIME_VERSION_FUTURE_CONFIG, "e2e-runtime-chain-future", "test"],
         { timeout: LLM_TIMEOUT },
       )
       expect(cmdResult.exitCode).toBe(1)

packages/core/src/schemas/runtime-version.ts

@@ -1,5 +1,8 @@
 import { z } from "zod"
 
-export type RuntimeVersion = "v1.0"
+export type RuntimeVersion = `v${number}.${number}`
 
-export const runtimeVersionSchema = z.enum(["v1.0"])
+export const runtimeVersionSchema = z
+  .string()
+  .regex(/^v\d+\.\d+$/, 'Runtime version must be in format "vX.Y" (e.g., "v1.0")')
+  .transform((v) => v as RuntimeVersion)