docs: document HARD GATE archival in Scribe workflow

[diberry]

Summary

The HARD GATE archival feature (two-tier threshold-based archival in the Scribe workflow) was shipped but has no documentation on the docs site.

Source

• Code PR: fix(scribe): add HARD GATE archival with two-tier thresholds to Scribe workflow bradygaster/squad#637
• Author: Dina Berry
• Commit: 3cc22b4f — fix(scribe): add HARD GATE archival with two-tier thresholds to Scribe workflow
• Related: fix(nap): archiveDecisions() silently fails — undated entries immune + no count-based fallback bradygaster/squad#626/fix: add count-based fallback to archiveDecisions() (#626) bradygaster/squad#627 (count-based fallback), docs(nap): add archiveDecisions() contract comment bradygaster/squad#648 (archiveDecisions contract comment), heading-aware archival (fix(nap): heading-aware archival bradygaster/squad#650)
• Status: Merged to dev, undocumented

What needs documenting

1. New docs page (or section in existing Scribe docs) explaining HARD GATE archival
2. Two-tier threshold behavior: 20KB → archive >30 days, 50KB → archive >7 days
3. How it integrates with the Scribe workflow (step 1 in Scribe spawn)
4. The archiveDecisions() function contract
5. Heading-aware archival behavior

Acceptance criteria

• Docs page explains HARD GATE concept and two-tier thresholds
• Examples showing what happens when decisions.md grows
• Cross-links to Scribe documentation and decisions workflow
• Navigation entry added
• docs-quality tests pass

Requirements

• Independent PR (single commit, squashed)
• Full team review (Flight + FIDO) before merge

[github-actions]

🏗️ Squad Triage — Flight (Lead)

Issue: #69 — docs: document HARD GATE archival in Scribe workflow
Assigned to: FIDO (Quality Owner)
Reason: Issue relates to testing/quality work

@copilot evaluation: 🔴 Not suitable — issue involves work outside the coding agent's capability profile.

Team roster:

• Flight (Lead) → label: squad:flight
• Procedures (Prompt Engineer) → label: squad:procedures
• EECOM (Core Dev) → label: squad:eecom
• FIDO (Quality Owner) → label: squad:fido
• PAO (DevRel) → label: squad:pao
• CAPCOM (SDK Expert) → label: squad:capcom
• CONTROL (TypeScript Engineer) → label: squad:control
• Surgeon (Release Manager) → label: squad:surgeon
• Booster (CI/CD Engineer) → label: squad:booster
• GNC (Node.js Runtime) → label: squad:gnc
• Network (Distribution) → label: squad:network
• RETRO (Security) → label: squad:retro
• INCO (CLI UX & Visual Design) → label: squad:inco
• GUIDO (VS Code Extension) → label: squad:guido
• Telemetry (Aspire & Observability) → label: squad:telemetry
• VOX (REPL & Interactive Shell) → label: squad:vox
• DSKY (TUI Engineer) → label: squad:dsky
• Sims (E2E Test Engineer) → label: squad:sims
• Handbook (SDK Usability) → label: squad:handbook
• Ralph (Work Monitor) → label: squad:ralph
• @copilot (Coding Agent) → label: squad:copilot

To reassign, remove the current squad:* label and add the correct one.

[github-actions]

📋 Assigned to DSKY (TUI Engineer)

Issue: #69 — docs: document HARD GATE archival in Scribe workflow

DSKY will pick this up in the next Copilot session.

For Copilot coding agent: If enabled, this issue will be worked automatically.
Otherwise, start a Copilot session and say:
DSKY, work on issue #69

[github-actions]

⚠️ No squad member found matching label squad:archive. Check .squad/team.md (or .ai-team/team.md) for valid member names.

[diberry]

Closing: work completed upstream or no longer relevant. See diberry/project-dina#22 cleanup audit.