chore: update STATE.scm with package manager session

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Jonathan D.A. Jewell

.machine_readable/STATE.scm

@@ -222,14 +222,14 @@
 
   (critical-next-actions
     (immediate
-      "enhancement-2-package-manager")
+      "enhancement-3-performance-benchmarks")
     (this-week
-      "enhancement-3-performance-benchmarks"
-      "enhancement-4-vscode-extension")
+      "enhancement-4-vscode-extension"
+      "enhancement-5-closure-optimization")
     (this-month
-      "enhancement-5-closure-optimization"
       "enhancement-1-phase-2-dwarf"
-      "enhancement-1-phase-3-dap-server"))
+      "enhancement-1-phase-3-dap-server"
+      "enhancement-1-phase-4-vscode-integration"))
 
   (session-history
     (session
@@ -469,4 +469,34 @@
         (debug-phase-1 "JSON source maps + mode metadata custom section")
         (cli-enhancements "--debug and --mode flags")
         (documentation "DEBUG-SUPPORT.md + ENHANCEMENTS-STATUS.md")
-        (future-roadmap "Phases 2-4 (DWARF, DAP, VS Code) + 4 remaining enhancements")))))
+        (future-roadmap "Phases 2-4 (DWARF, DAP, VS Code) + 4 remaining enhancements")))
+    (session
+      (date "2026-02-07-package-manager")
+      (goal "Implement Enhancement #2: Cargo-style package manager for Ephapax")
+      (accomplishments
+        "ephapax-package-crate-created"
+        "manifest-parsing-toml-validation"
+        "local-registry-implementation"
+        "dependency-resolution-backtracking"
+        "version-constraint-satisfaction"
+        "transitive-dependency-support"
+        "mode-specific-dependencies"
+        "cli-integration-4-commands"
+        "14-unit-tests-passing"
+        "comprehensive-documentation")
+      (tasks-completed
+        (enhancement-2 "Package Manager - Manifest, Registry, Resolver, CLI"))
+      (commits
+        "fd66b73 feat: implement package manager (Enhancement #2)")
+      (metrics
+        (completion "40% (2/5 enhancements)")
+        (new-modules "4 (manifest, registry, resolver, lib)")
+        (lines-added "875 (ephapax-package crate)")
+        (tests "14 unit tests + 1 integration test")
+        (cli-commands "4 (init, install, search, list)"))
+      (key-deliverables
+        (ephapax-package "Full package manager crate")
+        (cli-integration "Package subcommands in ephapax CLI")
+        (documentation "PACKAGE-MANAGER.md (complete guide)")
+        (registry-structure "Local package storage in ~/.ephapax/registry/")
+        (future-phases "Remote registry, module imports, lockfiles")))))