fix: numeric skill names, ultrawork missing run_in_background, ZWSP agent lookups

- #3354: Coerce data.name to String in loadSkillFromPath/loadSkillFromPathAsync
  to prevent crash when YAML parses numeric skill names (e.g., name: 12306)

- #3416: Add required run_in_background parameter to all task() examples in
  ultrawork prompts (default, gpt, gemini, planner) to match tool schema

- #3379/#3417/#3418/#3337/#3335: Strip ZWSP (U+200B) before agent name
  comparisons in agent-tool-restrictions, sync-prompt-sender, tool-execute-after,
  tool-execute-before, oracle-verification-detector, call-omo-agent,
  recovery-prompt-config, and agent-variant to prevent ZWSP-prefixed display
  names from breaking exact-match lookups

src/hooks/ralph-loop/oracle-verification-detector.ts

@@ -1,3 +1,4 @@
+import { stripInvisibleAgentCharacters } from "../../shared/agent-display-names"
 import { ULTRAWORK_VERIFICATION_PROMISE } from "./constants"
 
 export interface OracleVerificationEvidence {
@@ -54,7 +55,7 @@ export function isOracleVerified(text: string): boolean {
 		return false
 	}
 
-	const isOracleAgent = evidence.agent.toLowerCase() === "oracle"
+	const isOracleAgent = stripInvisibleAgentCharacters(evidence.agent).toLowerCase() === "oracle"
 	const isVerifiedPromise = evidence.promise === ULTRAWORK_VERIFICATION_PROMISE
 
 	return isOracleAgent && isVerifiedPromise
@@ -62,7 +63,7 @@ export function isOracleVerified(text: string): boolean {
 
 export function extractOracleSessionID(text: string): string | undefined {
 	const evidence = parseOracleVerificationEvidence(text)
-	if (!evidence || evidence.agent.toLowerCase() !== "oracle") {
+	if (!evidence || stripInvisibleAgentCharacters(evidence.agent).toLowerCase() !== "oracle") {
 		return undefined
 	}