* fix: add MaxTokens and Temperature fields to AgentInstance and update related logic
* feat: add MaxTokens and Temperature options to SubagentManager and update tool loop logic
* feat: add default temperature handling and update related tests
* feat: allow temperature 0 and distinguish unset
* fix: format MockLLMProvider struct in subagent_tool_test.go
Merge upstream/main into refactor/provider-protocol-122.
Resolve http_provider.go conflict (keep thin delegate).
Wire OpenAIProviderConfig.WebSearch through providerSelection
and into CodexProvider for codex-auth and codex-cli-token paths.
Add a new `picoclaw migrate` CLI command that detects an existing OpenClaw
installation and migrates workspace files and configuration to PicoClaw.
Workspace markdown files (SOUL.md, AGENTS.md, USER.md, TOOLS.md, HEARTBEAT.md,
memory/, skills/) are copied 1:1. Config keys are mapped from OpenClaw's
camelCase JSON format to PicoClaw's snake_case format with provider and channel
field mapping.
Supports --dry-run, --refresh, --config-only, --workspace-only, --force flags.
Existing PicoClaw files are never silently overwritten; backups are created.
Closes#27
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>