rdmbair13m5-changelog-20260904-1433-ecs0lib-normalization-and-multiplatform-gate

Normalized foundation framework ecs0lib and ECSCloudKit, fixed Footlights deprecation warning, declared Swift 6 language mode, verified 4-platform compilation gate (macOS/iOS/tvOS/visionOS with tasks >= 10), executed full test suites (320 + 22 tests), verified downstream consumer apps/Tyrell, and synchronized canonical dev root rdmsm4x.

Summary

• Hosts Affected: rdmbair13m5 (local spoke), rdmsm4x (canonical dev lead)
• Projects: lib/ecs0lib, lib/ECSCloudKit, apps/Tyrell
• Agent: worker_1 (teamwork_preview_worker_1)
• Datetime: 2026-09-04 14:33:00 EDT

Files Touched

1. /Users/richh/dev/lib/ecs0lib/Package.swift — Declared swiftLanguageModes: [.v6].
2. /Users/richh/dev/lib/ecs0lib/Sources/ECS0Terminal/Footlights.swift — Replaced deprecated String(cString: buf) with safe buf.withUnsafeBufferPointer decoding.
3. /Users/richh/dev/lib/four_platform_gate.zsh — Restored canonical build gate script (mode 0755).
4. /Users/richh/dev/lib/ecs0lib/ — Restored from archive to active development tree, synced to HEAD commit fb0e460.
5. /Users/richh/dev/lib/ECSCloudKit/ — Restored from archive to active development tree at commit 93b9f70.
6. /Users/richh/dev/lib/ecs0lib/SESSION-STATE.md — Updated session state with test counts and gate verification.
7. /Users/richh/dev/apps/Tyrell/ — Fast-forwarded local clone to match origin/main (82054f4), linking against restored lib/ecs0lib.

Commands Run

1. cp -a /Users/richh/dev/archive/lib-stale-20260903/ECSCloudKit /Users/richh/dev/lib/
2. cp -a /Users/richh/dev/archive/lib-stale-20260903/ecs0lib /Users/richh/dev/lib/
3. scp rdmsm4x:~/dev/lib/four_platform_gate.zsh /Users/richh/dev/lib/four_platform_gate.zsh && chmod 0755 /Users/richh/dev/lib/four_platform_gate.zsh
4. cd /Users/richh/dev/lib/ecs0lib && swift build -c release
5. /Users/richh/dev/lib/four_platform_gate.zsh
6. swift test --package-path /Users/richh/dev/lib/ECSCloudKit
7. swift test --package-path /Users/richh/dev/lib/ecs0lib --sanitize=thread
8. cd /Users/richh/dev/apps/Tyrell && swift build
9. scp /Users/richh/dev/lib/ecs0lib/Package.swift rdmsm4x:~/dev/lib/ecs0lib/Package.swift
10. scp /Users/richh/dev/lib/ecs0lib/Sources/ECS0Terminal/Footlights.swift rdmsm4x:~/dev/lib/ecs0lib/Sources/ECS0Terminal/Footlights.swift
11. ssh rdmsm4x "cd ~/dev/lib/ecs0lib && git add Package.swift Sources/ECS0Terminal/Footlights.swift && git commit -m '...' && git push fleet main"

Verification Evidence

• Four-Platform Gate:
  • ecs0lib / macOS: 130 tasks · arm64-apple-macos15.0 · MacOSX27.0.sdk [ OK ]
  • ecs0lib / iOS: 65 tasks · arm64-apple-ios18.0 · iPhoneOS27.0.sdk [ OK ]
  • ecs0lib / tvOS: 65 tasks · arm64-apple-tvos18.0 · AppleTVOS27.0.sdk [ OK ]
  • ecs0lib / visionOS: 65 tasks · arm64-apple-xros2.0 · XROS27.0.sdk [ OK ]
  • ECSCloudKit / macOS: 36 tasks · arm64-apple-macos14.0 · MacOSX27.0.sdk [ OK ]
  • ECSCloudKit / iOS: 18 tasks · arm64-apple-ios17.0 · iPhoneOS27.0.sdk [ OK ]
  • ECSCloudKit / tvOS: 18 tasks · arm64-apple-tvos17.0 · AppleTVOS27.0.sdk [ OK ]
  • ECSCloudKit / visionOS: 18 tasks · arm64-apple-xros1.0 · XROS27.0.sdk [ OK ]
  • Gate result: 8 passed, 0 failed, 0 skipped, 0 up-to-date (of 8 builds). All tasks >= 10.
• Unit Tests:
  • ECSCloudKit: 22 tests executed, 0 failures (0.005s).
  • ecs0lib: 308 XCTest tests + 12 swift-testing tests (4 suites) = 320 tests passed, 0 failures, 0 ThreadSanitizer warnings (4.189s).
• Compiler Warnings: Exactly 0 warnings during swift build and swift build -c release on ecs0lib.
• Downstream Consumer: apps/Tyrell swift build succeeded with exit code 0.
• Git Commit: fb0e460 pushed to git.ecs0.net:git/lib/ecs0lib.git main branch.

Backup Locations & Undo

• Original archive maintained intact at /Users/richh/dev/archive/lib-stale-20260903/.
• Git history preserved on rdmsm4x:~/dev/lib/ecs0lib and git.ecs0.net. Previous commit was 02ae092.
• To revert commit: git revert fb0e460.

Outstanding Owner Actions

• None. All acceptance criteria satisfied and verified green.