[WIP] Integrate praxis for declarative financial logic management

[Copilot]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>feat: integrate praxis for declarative financial logic management</issue_title>
<issue_description>## Summary
Wire praxis into FinancialAdvisor as the logic engine for all financial rules, expectations, and decision-making.

Where Praxis Fits

• Import validation: Praxis expectations validate imported data quality
• Resolution confidence: Praxis evaluates resolution confidence thresholds
• Budget rules: Budget limits and alerts as praxis expectations
• Reconciliation: Praxis rules detect ledger inconsistencies
• Analytics triggers: Praxis procedures trigger analytics recomputation on data changes
• Decision ledger: All financial decisions logged via praxis (not ad-hoc)

Implementation

• Add @plures/praxis dependency
• Create .praxis/ directory with:
  • expectations/import-quality.ts — validate import completeness
  • expectations/ledger-integrity.ts — double-entry balance verification
  • expectations/resolution-confidence.ts — minimum confidence thresholds
  • expectations/budget-compliance.ts — budget limit enforcement
  • triggers/data-events.ts — reactive analytics on data changes
  • lifecycle.ts — praxis engine configuration

Acceptance

• Praxis engine initialized on app start
• Import quality expectations fire on every import
• Ledger integrity verified continuously
• Budget violations create praxis alerts
• Decision ledger captures all user financial decisions</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes feat: integrate praxis for declarative financial logic management #59

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[kayodebristol]

Closing this PR to enforce the 1-PR-per-repo rule. Only one Copilot PR is allowed per repository at a time. The oldest PR (#48) will be kept active.