Carry argv-native WordPress transport through Kimaki memory sync

[chubes4]

Summary

• render DATAMACHINE_WP_TRANSPORT_JSON from the canonical WordPress CLI argv into Kimaki systemd and launchd environments
• parse that non-empty JSON string array once at the Kimaki dm-agent-sync input boundary
• spawn the executable directly with argv plus Data Machine arguments; no production sh -c WordPress path
• preserve timeout and process-group termination
• keep DATAMACHINE_WP_CMD only as an isolated shipped-install fallback and replace it on unit upgrade
• cover paths and arguments containing spaces in plugin execution and service rendering

Closes #490.

Verification

• bash -n bridges/kimaki.sh tests/bridge-render.sh tests/kimaki-no-default-channel.sh
• git diff --check
• bash tests/bridge-render.sh
• bun tests/dm-agent-sync.mjs
• bash tests/kimaki-no-default-channel.sh

AI assistance

• AI assistance: Yes
• Model: OpenAI GPT-5.6 Sol
• Tool: OpenCode general subagent
• Used for: Implemented and verified the Kimaki argv-native WordPress transport fix under human direction.

[chubes4]

Superseded by #492. This candidate was published after its Homeboy Cook had already been recorded as terminally cancelled with zero attempted tasks, executions, artifacts, or candidate evidence. The lifecycle/fencing defect is tracked in Extra-Chill/homeboy#13777. #492 was completed in an isolated worktree and preserves systemd JSON quoting for both compact and whitespace-bearing argv.

AI assistance: OpenAI GPT-5.6 Sol via OpenCode compared both candidates, traced the post-cancellation publication, and selected the replacement under Chris’s direction.