docs(architecture): map the current TriageCore system

[coreytshaffer]

Summary

• Adds a Level 1 current-system architecture map and reviewer-friendly derived SVG.
• Adds progressive-zoom documentation for the governed tc run flow, Workspace Unifier, WebAuthn and atomic capability lifecycle, mediated execution foundations, and constrained replacement ordering.
• Distinguishes current integrated runtime flow, implemented-but-disconnected foundations, and future separately gated integrations.
• Updates the Daily Driver planning status to reflect the completed CR-DD-013 capability-binding slice and documentation-only closeout.

Markdown pages are authoritative. The SVGs are derived reviewer-friendly exports.

Authority and integration boundaries

• No claim that the mediated foundations form an end-to-end runtime.
• No claim that TriageDesk has a current action/executor bridge.
• No claim that evidence, passing checks, or evaluator output constitutes approval.
• No implication that external coordination, bounded-agent, evaluator, or future executor actors are currently wired into TriageCore.

Scope

• Base verified at main@6d585268.
• Exactly 12 paths changed.
• Documentation-only: no runtime, test, workflow, schema, dependency, configuration, or evaluator-panel change.

Validation

• Both SVGs parsed as XML and rendered successfully.
• Markdown links validated.
• Mermaid fences validated.
• Stale-status and retired-authority wording scan passed.
• Trailing-whitespace scan and git diff --check passed.
• Exact changed-path audit passed for all 12 expected paths.
• Runtime tests were not run because this change is documentation-only.

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