docs(08-01): complete Rust directory archiver plan

- Create 08-01-SUMMARY.md with execution results and metrics
- Update STATE.md: Phase 8 complete, 12/~19 plans (63%)
- Update ROADMAP.md: Phase 8 marked complete
- Update REQUIREMENTS.md: DIR-01 through DIR-05 marked complete

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.planning/REQUIREMENTS.md

@@ -70,11 +70,11 @@
 
 ### Directory (Поддержка директорий)
 
-- [ ] **DIR-01**: `pack` рекурсивно обходит директории и добавляет все файлы
+- [x] **DIR-01**: `pack` рекурсивно обходит директории и добавляет все файлы
-- [ ] **DIR-02**: Относительные пути сохраняются при архивации (dir/subdir/file.txt)
+- [x] **DIR-02**: Относительные пути сохраняются при архивации (dir/subdir/file.txt)
-- [ ] **DIR-03**: Пустые директории сохраняются как записи типа "directory" в TOC
+- [x] **DIR-03**: Пустые директории сохраняются как записи типа "directory" в TOC
-- [ ] **DIR-04**: `unpack` создаёт полную иерархию директорий
+- [x] **DIR-04**: `unpack` создаёт полную иерархию директорий
-- [ ] **DIR-05**: `unpack` восстанавливает Unix mode bits для файлов и директорий
+- [x] **DIR-05**: `unpack` восстанавливает Unix mode bits для файлов и директорий
 
 ### Kotlin Decoder
 
@@ -165,11 +165,11 @@
 | FMT-10 | Phase 7 | Complete |
 | FMT-11 | Phase 7 | Complete |
 | FMT-12 | Phase 7 | Complete |
-| DIR-01 | Phase 8 | Pending |
+| DIR-01 | Phase 8 | Complete |
-| DIR-02 | Phase 8 | Pending |
+| DIR-02 | Phase 8 | Complete |
-| DIR-03 | Phase 8 | Pending |
+| DIR-03 | Phase 8 | Complete |
-| DIR-04 | Phase 8 | Pending |
+| DIR-04 | Phase 8 | Complete |
-| DIR-05 | Phase 8 | Pending |
+| DIR-05 | Phase 8 | Complete |
 | KOT-05 | Phase 9 | Pending |
 | KOT-06 | Phase 9 | Pending |
 | KOT-07 | Phase 9 | Pending |
@@ -189,4 +189,4 @@
 
 ---
 *Requirements defined: 2026-02-24*
-*Last updated: 2026-02-25 after v1.1 roadmap creation*
+*Last updated: 2026-02-26 after Phase 8 completion (DIR-01 to DIR-05 complete)*

.planning/ROADMAP.md

@@ -31,8 +31,8 @@ Decimal phases appear between their surrounding integers in numeric order.
 
 ### v1.1 Directory Support (In Progress)
 
-- [ ] **Phase 7: Format Spec Update** - Extend FORMAT.md with entry type, permission bits, and relative path fields in TOC
+- [x] **Phase 7: Format Spec Update** - Extend FORMAT.md with entry type, permission bits, and relative path fields in TOC
-- [ ] **Phase 8: Rust Directory Archiver** - Recursive directory traversal, path-preserving pack/unpack, empty dirs, and mode bits in Rust CLI
+- [x] **Phase 8: Rust Directory Archiver** - Recursive directory traversal, path-preserving pack/unpack, empty dirs, and mode bits in Rust CLI
 - [ ] **Phase 9: Kotlin Decoder Update** - Kotlin decoder parses new TOC, creates directory hierarchy, and sets permissions
 - [ ] **Phase 10: Shell Decoder Update** - Shell decoder parses new TOC, mkdir -p for hierarchy, chmod for permissions
 - [ ] **Phase 11: Directory Cross-Validation** - Round-trip tests with nested dirs, empty dirs, mode bits, and cross-decoder verification
@@ -159,7 +159,7 @@ Plans:
 **Plans**: 1 plan
 
 Plans:
-- [ ] 08-01-PLAN.md -- Update format.rs (v1.1 TocEntry), archive.rs (recursive dir pack/unpack/inspect), and integration tests
+- [x] 08-01-PLAN.md -- Update format.rs (v1.1 TocEntry), archive.rs (recursive dir pack/unpack/inspect), and integration tests
 
 ### Phase 9: Kotlin Decoder Update
 **Goal**: Kotlin decoder extracts directory archives created by the updated Rust archiver, preserving hierarchy and permissions on Android
@@ -209,7 +209,7 @@ Phases execute in numeric order: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 10
 | 5. Shell Decoder | v1.0 | 2/2 | Complete | 2026-02-25 |
 | 6. Obfuscation Hardening | v1.0 | 2/2 | Complete | 2026-02-25 |
 | 7. Format Spec Update | v1.1 | 1/1 | Complete | 2026-02-26 |
-| 8. Rust Directory Archiver | v1.1 | 0/1 | Not started | - |
+| 8. Rust Directory Archiver | v1.1 | 1/1 | Complete | 2026-02-26 |
 | 9. Kotlin Decoder Update | v1.1 | 0/TBD | Not started | - |
 | 10. Shell Decoder Update | v1.1 | 0/TBD | Not started | - |
 | 11. Directory Cross-Validation | v1.1 | 0/TBD | Not started | - |

.planning/STATE.md

@@ -2,13 +2,13 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: Directory Support
-status: unknown
+status: active
-last_updated: "2026-02-26T18:32:22.936Z"
+last_updated: "2026-02-26T18:48:33Z"
 progress:
-  total_phases: 7
+  total_phases: 8
-  completed_phases: 7
+  completed_phases: 8
-  total_plans: 11
+  total_plans: 12
-  completed_plans: 11
+  completed_plans: 12
 ---
 
 # Project State
@@ -18,27 +18,28 @@ progress:
 See: .planning/PROJECT.md (updated 2026-02-25)
 
 **Core value:** Archive impossible to unpack without knowing the format -- standard tools (7z, tar, unzip, binwalk) cannot recognize or extract contents
-**Current focus:** Milestone v1.1 Directory Support -- Phase 7: Format Spec Update
+**Current focus:** Milestone v1.1 Directory Support -- Phase 8: Rust Directory Archiver COMPLETE
 
 ## Current Position
 
-Phase: 7 of 11 (Format Spec Update) -- COMPLETE
+Phase: 8 of 11 (Rust Directory Archiver) -- COMPLETE
 Plan: 1 of 1 -- COMPLETE
-Status: Phase 7 complete, ready for Phase 8
+Status: Phase 8 complete, v1.1 directory support implemented and tested
-Last activity: 2026-02-26 -- Phase 7 Plan 01 executed (FORMAT.md v1.1 update)
+Last activity: 2026-02-26 -- Phase 8 Plan 01 executed (directory archival in Rust)
 
-Progress: [###########.........] 58% (11/~19 plans estimated)
+Progress: [############........] 63% (12/~19 plans estimated)
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 11
+- Total plans completed: 12
 - Average duration: 3.8 min
-- Total execution time: 0.7 hours
+- Total execution time: 0.8 hours
 
 | Phase | Plan | Duration | Tasks | Files |
 |-------|------|----------|-------|-------|
 | 07-01 | Format Spec Update | 8 min | 2 | 1 |
+| 08-01 | Rust Directory Archiver | 6 min | 3 | 4 |
 
 ## Accumulated Context
 
@@ -57,6 +58,10 @@ Recent decisions affecting current work:
 - v1.1: entry_type and permissions fields placed AFTER name, BEFORE original_size in TOC entry
 - v1.1: Directory entries use zero-filled crypto fields (uniform entry structure)
 - v1.1: Entry size formula: 104 + name_length (was 101)
+- v1.1: DFS preorder with sorted children for deterministic parent-before-child ordering
+- v1.1: Extracted crypto pipeline into process_file() helper for reuse
+- v1.1: Directory entries skip data_offset computation (offset=0, no ciphertext)
+- v1.1: Permissions stored as lower 12 bits of mode_t (0o7777 mask)
 
 ### Pending Todos
 
@@ -69,5 +74,5 @@ None.
 ## Session Continuity
 
 Last session: 2026-02-26
-Stopped at: Completed 07-01-PLAN.md -- Phase 7 complete, ready for Phase 8
+Stopped at: Completed 08-01-PLAN.md -- Phase 8 complete, v1.1 directory support implemented
 Resume file: None

.planning/phases/08-rust-directory-archiver/08-01-SUMMARY.md

@@ -0,0 +1,119 @@
+---
+phase: 08-rust-directory-archiver
+plan: 01
+subsystem: archive
+tags: [rust, directory-traversal, unix-permissions, binary-format, toc-entry]
+
+# Dependency graph
+requires:
+  - phase: 07-format-spec-update
+    provides: v1.1 FORMAT.md with entry_type, permissions fields, directory entry semantics
+provides:
+  - v1.1 TocEntry with entry_type and permissions fields (format.rs)
+  - Recursive directory traversal in pack with relative paths
+  - Directory hierarchy restoration with Unix mode bits in unpack
+  - Entry type and permissions display in inspect
+  - Directory round-trip integration tests
+affects: [09-backward-compat, 10-hardening, 11-polish]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns: [collect_entries pattern for recursive directory traversal, DFS preorder for parent-before-child ordering, ProcessedFile entry_type discriminator for file vs directory handling]
+
+key-files:
+  created: []
+  modified:
+    - src/format.rs
+    - src/archive.rs
+    - src/cli.rs
+    - tests/round_trip.rs
+
+key-decisions:
+  - "DFS preorder traversal with sorted children for deterministic parent-before-child ordering"
+  - "Directory entries use zero-filled crypto fields (no data block) per FORMAT.md v1.1"
+  - "Permissions captured via std::os::unix::fs::PermissionsExt::mode() & 0o7777"
+  - "Standalone files use filename-only names; directory children use relative paths with / separator"
+
+patterns-established:
+  - "collect_entries(): unified entry collection for mixed file/directory inputs"
+  - "process_file(): extracted crypto pipeline into reusable function"
+  - "make_directory_entry(): factory for zero-length directory ProcessedFile"
+
+requirements-completed: [DIR-01, DIR-02, DIR-03, DIR-04, DIR-05]
+
+# Metrics
+duration: 6min
+completed: 2026-02-26
+---
+
+# Phase 8 Plan 01: Rust Directory Archiver Summary
+
+**v1.1 format implementation with recursive directory traversal, Unix permission preservation, and directory/file type discrimination in pack/unpack/inspect**
+
+## Performance
+
+- **Duration:** 6 min
+- **Started:** 2026-02-26T18:42:02Z
+- **Completed:** 2026-02-26T18:48:33Z
+- **Tasks:** 3
+- **Files modified:** 4
+
+## Accomplishments
+- Updated format.rs to v1.1 binary layout: VERSION=2, TocEntry with entry_type (u8) and permissions (u16), entry_size=104+name_length
+- Implemented recursive directory traversal in pack() with parent-before-child ordering and relative path naming
+- unpack() creates full directory hierarchy, restores Unix mode bits on both files and directories
+- inspect() displays entry type (dir/file) and octal permissions for each TOC entry
+- All 41 tests pass: 25 unit + 7 golden + 9 integration (3 new directory tests)
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Update format.rs for v1.1 TOC entry layout** - `4e25d19` (feat)
+2. **Task 2: Update archive.rs and cli.rs for directory support** - `7820c18` (feat)
+3. **Task 3: Add directory round-trip integration test** - `8760981` (test)
+
+## Files Created/Modified
+- `src/format.rs` - v1.1 TocEntry with entry_type/permissions, VERSION=2, entry_size=104+N
+- `src/archive.rs` - Recursive directory traversal, permission capture/restore, directory-aware pack/unpack/inspect
+- `src/cli.rs` - Updated doc comments for directory support
+- `tests/round_trip.rs` - 3 new tests: directory round-trip, mixed files+dirs, inspect directory info
+
+## Decisions Made
+- Used DFS preorder with sorted children for deterministic parent-before-child ordering (no external walkdir dependency)
+- Extracted crypto pipeline into process_file() helper for reuse between single-file and directory-file processing
+- Directory entries skip data_offset computation and data block writing (offset=0, no ciphertext)
+- Permissions always stored as lower 12 bits of mode_t (0o7777 mask) per FORMAT.md v1.1 spec
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 3 - Blocking] Added entry_type/permissions to archive.rs ProcessedFile during Task 1**
+- **Found during:** Task 1 (format.rs update)
+- **Issue:** After adding new fields to TocEntry, archive.rs TocEntry constructions failed to compile
+- **Fix:** Added entry_type and permissions fields to ProcessedFile struct and its construction in pack()
+- **Files modified:** src/archive.rs
+- **Verification:** cargo test --lib format:: passed all 13 tests
+- **Committed in:** 4e25d19 (Task 1 commit)
+
+---
+
+**Total deviations:** 1 auto-fixed (1 blocking)
+**Impact on plan:** Necessary compilation fix from cross-file dependency. No scope creep.
+
+## Issues Encountered
+None -- all tasks executed smoothly after the blocking compilation fix.
+
+## User Setup Required
+None - no external service configuration required.
+
+## Next Phase Readiness
+- v1.1 format fully implemented and tested
+- Ready for Phase 9 (backward compatibility) or Phase 10 (hardening) if planned
+- All existing v1.0 tests updated to v1.1 format (no backward compat with v1.0 archives per decision)
+
+---
+*Phase: 08-rust-directory-archiver*
+*Completed: 2026-02-26*