Implement goal-driven repeat tasks

[aj47]

Summary

• Add goals and decisions as first-class .agents data files with core loaders, writers, exports, and tests.
• Add desktop goal/decision services, remote routes, TIPC routes, runtime tools, and MCP tool allowlisting.
• Add desktop Goals and Decisions dashboards, including a 24/7 goal supervisor card, active agents, current focus, decisions, and progress ledger.
• Add mobile Goals, Goal Edit, and Decisions screens plus settings API wiring and navigation.
• Seed the backward-compatible daily-goal-planning repeat task as a disabled 24/7 Goal Agent template with a bounded 15-minute supervisor cadence.

UX Notes

• Keeps the existing daily-goal-planning task id for compatibility while changing new installs to show a 24/7 Goal Agent template.
• Starting the supervisor now enables a continuous goal loop with intervalMinutes=15, continueInSession=true, and runContinuously=true.
• Removes sleeping/sleep language from the dashboard and presents standby/online state as always-on bounded cadence.

Validation

• Passed: pnpm build:shared
• Passed: pnpm --filter @dotagents/core test
• Passed: pnpm --filter @dotagents/desktop typecheck
• Passed: pnpm --filter @dotagents/desktop exec vitest run src/main/loop-service.continuous.test.ts src/main/loop-service.save-semantics.test.ts src/main/loop-service.folder-watcher.test.ts src/main/mcp-service.option-b.test.ts src/main/remote-server.routes.test.ts
• Failed: pnpm --filter @dotagents/mobile test. Failures are existing node source-assertion tests in chat/settings files not touched by this PR; the mobile goal/decision changes are included but the full mobile suite is not currently clean on this branch.

Compatibility

• Existing repeat tasks remain supported.
• Existing installations with a user-level daily-goal-planning task keep their local file; new bundled/default creation uses the updated 24/7 Goal Agent template.