refactor: remove legacy tools format, use permission only

BREAKING: Requires OpenCode 1.1.1+

- Remove supportsNewPermissionSystem/usesLegacyToolsSystem checks
- Simplify permission-compat.ts to permission format only
- Unify explore/librarian deny lists: write, edit, task, sisyphus_task, call_omo_agent
- Add sisyphus_task to oracle deny list
- Update agent-tool-restrictions.ts with correct per-agent restrictions
- Clean config-handler.ts conditional version checks
- Update tests for simplified API

src/tools/sisyphus-task/tools.ts

@@ -11,7 +11,7 @@ import { discoverSkills } from "../../features/opencode-skill-loader"
 import { getTaskToastManager } from "../../features/task-toast-manager"
 import type { ModelFallbackInfo } from "../../features/task-toast-manager/types"
 import { subagentSessions, getSessionAgent } from "../../features/claude-code-session-state"
-import { log } from "../../shared/logger"
+import { log, getAgentToolRestrictions } from "../../shared"
 
 type OpencodeClient = PluginInput["client"]
 
@@ -322,6 +322,7 @@ Use \`background_output\` with task_id="${task.id}" to check progress.`
               ...(resumeAgent !== undefined ? { agent: resumeAgent } : {}),
               ...(resumeModel !== undefined ? { model: resumeModel } : {}),
               tools: {
+                ...(resumeAgent ? getAgentToolRestrictions(resumeAgent) : {}),
                 task: false,
                 sisyphus_task: false,
                 call_omo_agent: true,