fix: resolve publish blockers for v3.7.4→v3.8.0 release

- Fix #1991 crash: optional chaining for task-history sessionID access
- Fix #1992 think-mode: add antigravity entries to HIGH_VARIANT_MAP
- Fix #1949 Copilot premium misattribution: use createInternalAgentTextPart
- Fix #1982 load_skills: pass directory to discoverSkills for project-level skills
- Fix command priority: sort scopePriority before .find(), project-first return
- Fix Google provider transform: apply in userFallbackModels path
- Fix ralph-loop TUI: optional chaining for event handler
- Fix runtime-fallback: unify dual fallback engines, remove HTTP 400 from retry,
  fix pendingFallbackModel stuck state, add priority gate to skip model-fallback
  when runtime-fallback is active
- Fix Prometheus task system: exempt from todowrite/todoread deny
- Fix background_output: default full_session to true
- Remove orphan hooks: hashline-edit-diff-enhancer (redundant with hashline_edit
  built-in diff), task-reminder (dead code)
- Remove orphan config entries: 3 stale hook names from Zod schema
- Fix disabled_hooks schema: accept arbitrary strings for forward compatibility
- Register json-error-recovery hook in tool-guard pipeline
- Add disabled_hooks gating for question-label-truncator, task-resume-info,
  claude-code-hooks
- Update test expectations to match new behavior

src/plugin/hooks/create-tool-guard-hooks.ts

@@ -12,6 +12,7 @@ import {
   createTasksTodowriteDisablerHook,
   createWriteExistingFileGuardHook,
   createHashlineReadEnhancerHook,
+  createJsonErrorRecoveryHook,
 } from "../../hooks"
 import {
   getOpenCodeVersion,
@@ -31,6 +32,7 @@ export type ToolGuardHooks = {
   tasksTodowriteDisabler: ReturnType<typeof createTasksTodowriteDisablerHook> | null
   writeExistingFileGuard: ReturnType<typeof createWriteExistingFileGuardHook> | null
   hashlineReadEnhancer: ReturnType<typeof createHashlineReadEnhancerHook> | null
+  jsonErrorRecovery: ReturnType<typeof createJsonErrorRecoveryHook> | null
 }
 
 export function createToolGuardHooks(args: {
@@ -99,6 +101,10 @@ export function createToolGuardHooks(args: {
     ? safeHook("hashline-read-enhancer", () => createHashlineReadEnhancerHook(ctx, { hashline_edit: { enabled: pluginConfig.hashline_edit ?? true } }))
     : null
 
+  const jsonErrorRecovery = isHookEnabled("json-error-recovery")
+    ? safeHook("json-error-recovery", () => createJsonErrorRecoveryHook(ctx))
+    : null
+
   return {
     commentChecker,
     toolOutputTruncator,
@@ -109,5 +115,6 @@ export function createToolGuardHooks(args: {
     tasksTodowriteDisabler,
     writeExistingFileGuard,
     hashlineReadEnhancer,
+    jsonErrorRecovery,
   }
 }