chore(version): bump 0.6.0 → 0.7.0rc1

[cipher813]

Summary

3-line version bump sealing the 2026-05-22 substrate arc:

• feat(capture-attention): Phase A — recurrence-weighted preserve+relate+boost #153 capture-attention Phase A (recurrence-weighted preserve+relate+boost)
• feat(salience): Phase 1 — first-class standing tier (default-off, soak-gated) #154 salience-tier Phase 1 (first-class standing tier, +3 MCP tools)
• fix(scripts): build_standing_set exemplar bias — add declarative-posture patterns #155 `build_standing_set.py` exemplar bias fix

Both new feature paths gated default-off (`CAPTURE_ATTENTION_ENABLED`, `STANDING_TIER_ENABLED`) — operator flips per the soak workflow post-redeploy.

Diff

```
CHANGELOG.md | 2 +-
pyproject.toml | 2 +-
src/mnemon/init.py | 2 +-
```

Mirrors the PR #77 / #86 / #128 3-line bump pattern. Version reads 0.7.0rc1 everywhere; `mnemon --version` returns 0.7.0rc1; suite 836 passing.

Post-merge ritual

1. `git tag v0.7.0rc1 && git push origin v0.7.0rc1`
2. `gh release create v0.7.0rc1 --notes-from-tag` (or CHANGELOG entry as body)
3. `.venv/bin/python -m build && .venv/bin/twine upload dist/mnemon-memory-0.7.0rc1*`
4. `mnemon upgrade web --app-name mnemon-memory --mnemon-version 0.7.0rc1` (operator-driven)
5. `mnemon doctor` 7/7 against live remote
6. Operator activates Phase 1 standing tier per soak workflow:
   • Promote 5 career memories via `memory_promote` MCP tool: ids 2543, 2084, 131, 2402, 2401
   • `export MNEMON_STANDING_TIER_ENABLED=true` in Claude Code launching shell
   • Verify `## Standing context` sub-section in ``
   • Soak ≥1 week

Test plan

• `mnemon --version` returns `0.7.0rc1`
• Full suite 836 passing
• Post-merge: fresh-venv install test against PyPI artifact
• Post-redeploy: `mnemon doctor` 7/7 against live Fly

🤖 Generated with Claude Code