feat: add additional effort levels

[sadpandajoe]

Summary

• minimal effort for Codex — adds 'minimal' as a new EffortLevel, which passes through to the Codex SDK natively (its lowest tier) and clamps to 'low' on both Claude delivery paths (SDK query-builder + CLI spawn-config). The EffortSelector UI gains a 'Minimal' option at the bottom with a note that Claude uses Low instead.

• ultracode mode for claude-code / claude-code-cli — enables Claude Code's xhigh-effort + standing-workflow-orchestration mode via a per-session Settings file (~/.agor/session-flags/<session-id>.json), not inline Settings JSON. The inline-object path is deliberately avoided: the Claude CLI content-addresses inline JSON to /tmp/claude-settings-<hash>.json mode 0600; identical settings across concurrent sessions (or different Unix users under insulated/strict mode) resolve to the same hash and fail with EACCES. The file-path form (Options.settings = '<path-string>') is unique per session via UUID. A guard in agor_sessions_create rejects ultracode: true with a descriptive error when the agenticTool is not claude-code / claude-code-cli. The settings file is cleaned up after each prompt turn (try/finally in prompt-service.ts); the CLI path mirrors mcpConfigPath (best-effort, lifecycle hook deferred). Mid-session applyFlagSettings delivery is out of scope — ultracode applies from the first turn of a new session.

Q-decisions wired (from spec)

• Q1: ultracode on model_config ✓
• Q2: Hard-reject with descriptive error if ultracode: true + non-claude-code tool ✓
• Q3: Informational tooltip in UI, no auto-set effort ✓
• Q4: Unique per-session settings file, cleanup mirrored to mcpConfigPath lifecycle ✓
• Q5: Mid-session applyFlagSettings out of scope ✓

Files changed

File	Why
packages/core/src/types/session.ts	Add 'minimal' to EffortLevel; add ultracode? to Session.model_config and SpawnConfig.modelConfig
packages/core/src/types/user.ts	Add ultracode? to DefaultModelConfig
packages/core/src/models/resolve-config.ts	Thread ultracode through ModelConfigInput → resolveModelConfig → fallback overrides
packages/core/src/db/schema.{sqlite,postgres}.ts	Add ultracode? to inline model config shapes in default_agentic_config
packages/core/src/templates/spawn-subsession-template.ts	Surface ultracode in Handlebars display and JSON
packages/core/src/claude-cli/spawn-config.ts	Export toClaudeEffort() clamper; add ultracodeSettingsPath? to ClaudeCliSpawnConfig; emit --settings <path>
packages/executor/src/sdk-handlers/claude/model-utils.ts	Export toClaudeEffort() clamper (SDK path)
packages/executor/src/sdk-handlers/claude/query-builder.ts	Use toClaudeEffort() for effort; write ultracode settings file, set queryOptions.settings = path, return ultracodeSettingsPath
packages/executor/src/sdk-handlers/claude/prompt-service.ts	Destructure ultracodeSettingsPath; unlink in finally block
packages/executor/src/sdk-handlers/codex/prompt-service.ts	Update toCodexReasoningEffort return type to include 'minimal'
apps/agor-daemon/src/mcp/tools/sessions.ts	Add ultracode to modelConfigObjectSchema; update effort enum; add Guard A; reuse explicitModelConfig
apps/agor-daemon/src/mcp/tools/schedules.ts	Add ultracode and 'minimal' effort to agenticToolConfigSchema
apps/agor-daemon/src/services/claude-cli-integration.ts	writeUltracodeSettingsFileIfNeeded(); use toClaudeEffort() for effort clamp in CLI path
apps/agor-ui/src/components/EffortSelector/EffortSelector.tsx	Add 'Minimal' option (shortLabel 'Mn') at bottom with Codex-only note
apps/agor-ui/src/components/ModelSelector/ModelSelector.tsx	Add ultracode? to ModelConfig; add handleUltracodeChange; add checkbox in claude-code section
apps/agor-ui/src/components/SessionPanel/SessionPanel.tsx	Thread ultracode through modelConfig construction and handleModelConfigChange
PLAN.md	Removed (rationale lives in this PR body)

Test plan

• packages/core — resolveModelConfig ultracode + minimal round-trips; spawn-config --settings arg + toClaudeEffort clamp (5 new assertions)
• packages/executor — query-builder: ultracode settings path is unique per session + under .agor/session-flags/; minimal clamped to 'low'; codex prompt-service existing tests still green
• apps/agor-daemon — sessions.test.ts: Guard A rejects ultracode+codex; ultracode threads to model_config; minimal effort threads to model_config; all 1293 existing daemon tests pass
• Typecheck: @agor/core, @agor/executor, @agor/daemon, agor-ui all green
• Lint: biome clean on all 22 changed files

DRAFT pending Joegor review of ultracode settings-file delivery approach and UI checkbox placement.

🤖 Generated with Claude Code