Refresh dm-context-filter for Kimaki 0.13

[chubes4]

Summary

• Rebaseline dm-context-filter around managed Kimaki startup behavior, especially --no-critique.
• Keep Data Machine conflict filters for scheduling, site runtime/tunnel defaults, cross-project session discovery, and generic agent override examples.
• Add effective-prompt coverage for the chat.message filter so Kimaki MEMORY.md injection/reminders stay suppressed.
• Refresh effective-prompt snapshots and docs to describe the remaining policy.

Fixes #143.

Verification

• node tests/effective-prompt/run.mjs
• KIMAKI_DIST_DIR="/var/folders/lr/c_cmmt7s0592m4njz99v5yb40000gn/T/opencode/kimaki-0.13.0/dist" node tests/effective-prompt/run.mjs
• bash tests/bridge-render.sh
• bash tests/datamachine-kimaki-adapter.sh

Note: the Kimaki 0.13 package tarball needed temporary dependency install outside the repo. The published package includes private/missing dev dependencies (db, opencode-cached-provider, opencode-deterministic-provider), so those dev dependency entries were removed only from the temp extraction before npm install --omit=dev --ignore-scripts --package-lock=false. No repo files were modified for that.

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (GPT-5.5)
• Used for: Refreshed the Kimaki context filter, prompt harness, snapshots, docs, and ran verification; Chris remains responsible for review and merge.

[chubes4]

Superseded by integration PR #162, which combines the Kimaki 0.13 cleanup work and resolves the overlapping bridge/test conflicts.