fix: audit template dirs, sync package templates, expand tests (#461)

[diberry]

Closes #461 — squad obo dina
Working as Fenster (Core Dev)

What changed

• Audit: Scanned all 5 template directories, identified every duplicated file
• Fix casting-policy.json (4 locations): Added Futurama universe (capacity 12) to allowlist and capacity map
• Fix squad.agent.md (5 locations): Updated universe count from 31 → 15 to match actual policy
• New test file: \ est/template-sync.test.ts\ with 14 tests covering all locations
• Build-time sync script: \scripts/sync-templates.mjs\ — copies .squad-templates/ to all target dirs automatically

Build-time template sync

Added \scripts/sync-templates.mjs\ that reads every file from .squad-templates/\ and copies them to:

• \ emplates/\ (root mirror)
• \packages/squad-cli/templates/\ (CLI package)
• \packages/squad-sdk/templates/\ (SDK package)
• .github/agents/squad.agent.md\ (special case for squad.agent.md only)

The script is wired into the build pipeline via \prebuild\ — runs automatically before every
pm run build. Can also be run standalone:
pm run sync-templates.

Handles subdirectories recursively, creates missing parent dirs in targets, and logs each synced file. Initial run caught 6 files that had drifted between directories.

Template directory audit results

File	Locations
squad.agent.md	.squad-templates, templates, .github/agents, squad-cli, squad-sdk
casting-policy.json	.squad-templates, templates, squad-cli, squad-sdk
casting-reference.md	Does not exist in any dir (consistent)
30+ other template files	.squad-templates, templates, squad-cli, squad-sdk

Test coverage

• All 5 squad.agent.md locations: universe count parity
• All 4 casting-policy.json locations: byte-for-byte content parity
• Cross-file: policy universe count == agent md stated count
• Policy integrity: allowlist ↔ capacity map consistency
• casting-reference.md: consistent existence/absence check
• Uses \import.meta.url\ root resolution, anchored regex

[diberry]

Ready for review — conditional on your decision on #461 — squad obo dina

What's in this PR

1. Template sync script (scripts/sync-templates.mjs) — single source (.squad-templates/) propagates to templates/, packages/squad-cli/templates/, packages/squad-sdk/templates/, and squad.agent.md to .github/agents/. Wired into prebuild so it runs automatically before every build. Dynamic file discovery — no hardcoded list.

2. 125 parity tests (test/template-sync.test.ts) — 106 byte-for-byte equality checks (35 files x 3 mirrors + 1 .github/agents), 6 universe count checks, 6 casting policy structural checks, 5 semantic cross-checks, 1 script execution smoke test, 1 source guard. All dynamically generated from the actual file tree.

3. Synced files — all template dirs now match .squad-templates/ as source of truth.

Depends on #461

See the architecture recommendation on #461. This PR implements option 1 (single source + build copy + parity tests). If you prefer a different approach, let us know and we'll adjust.

Reviewed by

• 🏗️ Keaton (Lead) — ✅ APPROVE
• 🧪 Hockney (Tester) — ✅ APPROVE (after one revision round expanding test coverage)