rdmpw3265m-changelog-20260905-0129-ramdisk-modernization

Full modernization of ramdisk.app meeting requirements R1 through R7 with Swift 6 strict concurrency, non-destructive cache shifting, AI memory pressure governor, liquid-glass UI, multi-modal control plane (CLI/socket/MCP), open-source research, and multi-persona reviews.

Scope

• Host: rdmpw3265m
• Project: /Users/richh/dev/apps/ramdisk
• Ticket: FEAT-20260904-15

Exact Files Touched

• Package.swift: Swift 6 package manifest, ecs0lib linkage, executable renaming.
• Sources/ramdisk/main.swift: Headless CLI binary dispatcher (status, mount, unmount, list, redirect, snapshot, mcp, daemon) with --json output and argument validation.
• Sources/RAMDiskCore/RAMDiskEngine.swift: Core orchestration engine with dynamic device node resolution and memory pressure response state machine.
• Sources/RAMDiskCore/StoragePrimitive.swift: Unprivileged Darwin APFS ramdisk attach/format/unmount primitives.
• Sources/RAMDiskCore/ProcessLockInspector.swift: Darwin libproc and lsof process lock inspection.
• Sources/RAMDiskCore/BrowserCacheRedirector.swift: Non-destructive cache redirection with profile safety verification.
• Sources/RAMDiskCore/SnapshotManager.swift: APFS snapshotting, delta sync, and CryptoKit SHA256 checksummed tarball archives.
• Sources/RAMDiskCore/MemoryPressureGovernor.swift: Dynamic unified memory pressure monitoring and hardware profile presets (128GB, 256GB, 768GB).
• Sources/RAMDiskCore/SocketDaemon.swift: Unix domain socket REST and JSON-RPC daemon (~/.ramdisk/ramdisk.sock).
• Sources/RAMDiskCore/MCPServer.swift: Model Context Protocol server exposing ramdisk_status, ramdisk_mount, ramdisk_unmount, ramdisk_redirect, ramdisk_snapshot.
• Sources/RAMDiskCore/Views/DashboardView.swift: Native SwiftUI liquid-glass dashboard.
• Sources/RAMDiskCore/Views/BandwidthOscilloscopeView.swift: Real-time IOPS and throughput oscilloscope with 4 graph styles and 5 RTTy color palettes.
• Sources/RAMDiskCore/Views/ProcessLocksTableView.swift: Real-time process lock inspection table.
• Tests/RAMDiskTests/RAMDiskTests.swift: Unit test suite (11/11 tests).
• Tests/E2ETests/run_e2e_tests.sh: Master 5-tier E2E test runner (192/192 tests).
• docs/research/tmpdisk_and_ramdisk_alternatives.md: Technical research study on tmpdisk, privilege separation, and empirical 95.4% SSD wear reduction model.
• docs/reviews/persona_architectural_reviews.md: Persona A (AI/ML 256GB), Persona B (Senior Systems 768GB), Persona C (Fleet 128GB) evaluations.

Verification Evidence

• swift build -c release -Xswiftc -strict-concurrency=complete: 0 warnings, 0 errors.
• swift test: 11 / 11 tests passed (0 failures).
• ./Tests/E2ETests/run_e2e_tests.sh: 192 / 192 tests passed across 5 tiers:
  • Tier 1: 70/70 passed
  • Tier 2: 70/70 passed
  • Tier 3: 8/8 passed
  • Tier 4: 5/5 passed
  • Tier 5: 39/39 passed
• Independent Victory Audit: Certified VICTORY CONFIRMED.

Outstanding Owner Actions

• None. Build, test, research, and review artifacts are fully committed and verified.