Storage refactor: tickets in column subdirs, drop redundant column frontmatter

- TicketStore rewritten: tickets live in .project/kanban/<column>/<id>.md
- _findTicketFile() searches all column subdirs (one level deep)
- update() moves the file when column changes
- delete() cleans up attachments/<id>/ if present
- _nextNumber() scans all subdirs including archive
- Ticket.fromFileContent() now takes column as explicit parameter
- Ticket.toFileContent() drops column field (derived from path)
- _yamlQuote() added to safely quote titles containing ': '
- dew.yaml: columns changed to backlog/doing/done (alphabetical order)
- Existing tickets migrated to .project/kanban/backlog/

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.project/dew.yaml

@@ -16,11 +16,11 @@ dew:
       - id: "spike"
         name: "Spike"
     columns:
-      - id: "todo"
-        name: "To Do"
+      - id: "backlog"
+        name: "Backlog"
         color: "blue"
-      - id: "in-progress"
-        name: "In Progress"
+      - id: "doing"
+        name: "Doing"
         color: "yellow"
       - id: "done"
         name: "Done"

.project/kanban/backlog/DEW-0001.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0001
+title: Engineering Quality
+type: epic
+created: 2026-04-23T23:37:10.461762Z
+---
+
+Refactor and harden the core infrastructure before layering features on top. Covers config architecture, ticket storage model, and documentation accuracy.

.project/kanban/backlog/DEW-0002.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0002
+title: Bootstrapping
+type: epic
+created: 2026-04-23T23:37:10.465324Z
+---
+
+Make it easy to initialize a new Dew project. `dew init` scaffolds the .project/ directory and each module creates its own folders via init hooks.

.project/kanban/backlog/DEW-0003.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0003
+title: Milestones & Labels
+type: epic
+created: 2026-04-23T23:37:10.468947Z
+---
+
+Add freeform milestone and label fields to tickets for grouping and filtering. Both are List<String> in ticket frontmatter.

.project/kanban/backlog/DEW-0004.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0004
+title: Output Polish
+type: epic
+created: 2026-04-23T23:37:10.472323Z
+---
+
+Improve human-facing CLI output. Grouped list by column, enhanced search filters, and an ASCII board view.

.project/kanban/backlog/DEW-0005.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0005
+title: Column Transitions
+type: epic
+created: 2026-04-23T23:37:10.476017Z
+---
+
+Optional config-driven validation of which column moves are allowed. E.g. prevent moving directly from todo to done.

.project/kanban/backlog/DEW-0006.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0006
+title: Archiving
+type: epic
+created: 2026-04-23T23:37:10.479959Z
+---
+
+Soft-delete tickets to an archive folder rather than permanently destroying them. Archived tickets are excluded from normal list/search but can be browsed.

.project/kanban/backlog/DEW-0007.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0007
+title: "Config refactor: DewConfig.raw + per-package extensions"
+type: story
+created: 2026-04-23T23:37:36.822736Z
+---
+
+DewConfig in core becomes a thin wrapper: `class DewConfig { final YamlMap raw; }`. Each package adds a Dart extension with a typed getter (e.g. KanbanDewConfig, McpDewConfig). KanbanConfig/ColumnConfig/TicketTypeConfig move to dew_kanban; McpConfig moves to dew_mcp. Call sites unchanged: context.config.kanban.prefix etc.

.project/kanban/backlog/DEW-0008.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0008
+title: "Ticket storage refactor: column subdirectories"
+type: story
+created: 2026-04-23T23:37:36.826965Z
+---
+
+Move ticket .md files from flat .project/kanban/ into column subdirectories (.project/kanban/todo/DEW-0001.md). Attachments live at .project/kanban/attachments/<ticket-id>/ (stable path, unaffected by moves). TicketStore changes: _filePath needs column, findById searches all column dirs, move physically moves the .md file, delete removes .md + attachments/<id>/ if present, create writes into correct column dir.

.project/kanban/backlog/DEW-0009.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0009
+title: Update stale documentation
+type: task
+created: 2026-04-23T23:37:36.830655Z
+---
+
+docs/mcp.md only lists 5 of 12 tools; update to reflect current tool set. docs/index.md references old interface names. docs/kanban.md is a stub; flesh it out. Update tool list, command reference, and architecture notes.

.project/kanban/backlog/DEW-0010.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0010
+title: dew init command with module init hooks
+type: story
+created: 2026-04-23T23:37:36.834286Z
+---
+
+Add `dew init [path]` command. Core defines DewInitHook interface with onInit(root, options). Options include bool gitkeep (default true). Each package registers a hook. Kanban hook creates: column dirs (from config), archive/, attachments/ under .project/kanban/. --[no-]gitkeep flag adds .gitkeep to empty dirs. Must run after storage refactor so dir structure matches new layout.

.project/kanban/backlog/DEW-0011.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0011
+title: Add milestones and labels to Ticket model
+type: story
+created: 2026-04-23T23:37:36.838770Z
+---
+
+Add milestones: List<String> and labels: List<String> to the Ticket model and YAML frontmatter. Support --milestone and --label flags on create/update. Add --label and --milestone filter flags to list and search commands. Depends on storage refactor.

.project/kanban/backlog/DEW-0012.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0012
+title: Grouped list view and ASCII board
+type: story
+created: 2026-04-23T23:37:36.842362Z
+---
+
+dew kanban list groups output by column with counts. Add `dew kanban board` subcommand for a full ASCII kanban board view showing all columns and their tickets side by side (or stacked).

.project/kanban/backlog/DEW-0013.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0013
+title: Enhanced search filters
+type: story
+created: 2026-04-23T23:37:36.846212Z
+---
+
+Add --column, --type, --label, --milestone filter flags to `dew kanban search`. Currently only matches on text. Filters should be combinable (AND semantics).

.project/kanban/backlog/DEW-0014.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0014
+title: Column transition validation
+type: story
+created: 2026-04-23T23:37:36.849741Z
+---
+
+Add optional allowed_transitions map to column config in dew.yaml. When configured, MoveCommand validates the requested move is permitted and errors with a helpful message listing allowed next columns. Unconfigured = all moves allowed (current behaviour).

.project/kanban/backlog/DEW-0015.md

@@ -0,0 +1,8 @@
+---
+id: DEW-0015
+title: "Archive command: soft-delete tickets"
+type: story
+created: 2026-04-23T23:37:36.853236Z
+---
+
+Add `dew kanban archive --id <id>` that moves a ticket to .project/kanban/archive/ (and its attachments stay at attachments/<id>/). Archived tickets excluded from list/search by default; add --include-archived flag to opt in. Depends on storage refactor.

packages/kanban/lib/src/ticket.dart

@@ -71,6 +71,9 @@ class Ticket {
 
   /// Serialises the ticket to markdown with YAML frontmatter.
   ///
+  /// The column is intentionally omitted — it is derived from the containing
+  /// directory name and would be redundant (and stale after a move).
+  ///
   /// Format:
   /// ```
   /// ---
@@ -89,9 +92,8 @@ class Ticket {
     final buf = StringBuffer();
     buf.writeln('---');
     buf.writeln('id: $id');
-    buf.writeln('title: $title');
+    buf.writeln('title: ${_yamlQuote(title)}');
     buf.writeln('type: $type');
-    buf.writeln('column: $column');
     buf.writeln('created: ${created.toUtc().toIso8601String()}');
     if (links.isNotEmpty) {
       buf.writeln('links:');
@@ -114,7 +116,9 @@ class Ticket {
     return buf.toString();
   }
 
-  static Ticket fromFileContent(String id, String content) {
+  /// Parses a ticket from file content. [column] must be supplied by the
+  /// caller (derived from the containing directory name).
+  static Ticket fromFileContent(String id, String content, String column) {
     if (!content.startsWith('---\n')) {
       throw FormatException('Ticket file $id does not start with ---');
     }
@@ -146,12 +150,25 @@ class Ticket {
       id: id,
       title: fm['title'] as String,
       type: fm['type'] as String,
-      column: fm['column'] as String,
+      column: column,
       created: DateTime.parse(fm['created'] as String),
       body: sections.isNotEmpty ? sections[0] : '',
       comments: sections.length > 1 ? sections.sublist(1) : const [],
       links: links,
     );
   }
+
+  /// Wraps [value] in double quotes if it contains characters that would
+  /// confuse a YAML parser (colon-space, leading/trailing whitespace, etc.).
+  static String _yamlQuote(String value) {
+    final needsQuoting = value.contains(': ') ||
+        value.contains(' #') ||
+        value.startsWith('"') ||
+        value.startsWith("'") ||
+        value.startsWith(' ') ||
+        value.endsWith(' ');
+    if (!needsQuoting) return value;
+    return '"${value.replaceAll('\\', '\\\\').replaceAll('"', '\\"')}"';
+  }
 }
 

packages/kanban/lib/src/ticket_store.dart

@@ -16,7 +16,8 @@ class TicketStore {
     required String column,
     String body = '',
   }) async {
-    await Directory(kanbanDir).create(recursive: true);
+    final columnDir = Directory(p.join(kanbanDir, column));
+    await columnDir.create(recursive: true);
     final id = _formatId(await _nextNumber());
     final ticket = Ticket(
       id: id,
@@ -27,14 +28,14 @@ class TicketStore {
       body: body,
       comments: const [],
     );
-    await File(_filePath(id)).writeAsString(ticket.toFileContent());
+    await File(p.join(columnDir.path, '$id.md')).writeAsString(ticket.toFileContent());
     return ticket;
   }
 
   Future<Ticket?> findById(String id) async {
-    final file = File(_filePath(id));
-    if (!await file.exists()) return null;
-    return Ticket.fromFileContent(id, await file.readAsString());
+    final found = await _findTicketFile(id);
+    if (found == null) return null;
+    return Ticket.fromFileContent(id, await found.file.readAsString(), found.column);
   }
 
   Future<List<Ticket>> list() async {
@@ -43,11 +44,15 @@ class TicketStore {
     final pattern = RegExp(r'^' + RegExp.escape(prefix) + r'-\d{4}\.md$');
     final tickets = <Ticket>[];
     await for (final entity in dir.list()) {
-      final name = p.basename(entity.path);
-      if (pattern.hasMatch(name)) {
+      if (entity is! Directory) continue;
+      final col = p.basename(entity.path);
+      if (col == 'archive' || col == 'attachments') continue;
+      await for (final file in entity.list()) {
+        if (file is! File) continue;
+        final name = p.basename(file.path);
+        if (!pattern.hasMatch(name)) continue;
         final id = p.basenameWithoutExtension(name);
-        final ticket = await findById(id);
-        if (ticket != null) tickets.add(ticket);
+        tickets.add(Ticket.fromFileContent(id, await file.readAsString(), col));
       }
     }
     tickets.sort((a, b) => a.id.compareTo(b.id));
@@ -55,12 +60,11 @@ class TicketStore {
   }
 
   Future<Ticket> addComment(String id, String comment) async {
-    final ticket = await findById(id);
-    if (ticket == null) throw ArgumentError('Ticket $id not found.');
-    final updated = ticket.copyWith(
-      comments: [...ticket.comments, comment],
-    );
-    await File(_filePath(id)).writeAsString(updated.toFileContent());
+    final found = await _findTicketFile(id);
+    if (found == null) throw ArgumentError('Ticket $id not found.');
+    final ticket = Ticket.fromFileContent(id, await found.file.readAsString(), found.column);
+    final updated = ticket.copyWith(comments: [...ticket.comments, comment]);
+    await found.file.writeAsString(updated.toFileContent());
     return updated;
   }
 
@@ -81,7 +85,8 @@ class TicketStore {
       final updated = ticket.copyWith(
         links: [...ticket.links, TicketLink(targetId: targetId, type: type)],
       );
-      await File(_filePath(id)).writeAsString(updated.toFileContent());
+      final found = (await _findTicketFile(id))!;
+      await found.file.writeAsString(updated.toFileContent());
     }
 
     // Inverse link on the target.
@@ -90,29 +95,34 @@ class TicketStore {
       final updatedTarget = target.copyWith(
         links: [...target.links, TicketLink(targetId: id, type: inverseType)],
       );
-      await File(_filePath(targetId)).writeAsString(updatedTarget.toFileContent());
+      final foundTarget = (await _findTicketFile(targetId))!;
+      await foundTarget.file.writeAsString(updatedTarget.toFileContent());
     }
 
     return (await findById(id))!;
   }
 
   Future<Ticket> unlinkTickets(String id, String targetId) async {
-    final ticket = await findById(id);
-    if (ticket == null) throw ArgumentError('Ticket $id not found.');
-
-    // Remove forward link.
+    final found = await _findTicketFile(id);
+    if (found == null) throw ArgumentError('Ticket $id not found.');
+    final ticket = Ticket.fromFileContent(id, await found.file.readAsString(), found.column);
     final updated = ticket.copyWith(
       links: ticket.links.where((l) => l.targetId != targetId).toList(),
     );
-    await File(_filePath(id)).writeAsString(updated.toFileContent());
+    await found.file.writeAsString(updated.toFileContent());
 
     // Remove inverse link on target (if it exists).
-    final target = await findById(targetId);
-    if (target != null) {
+    final foundTarget = await _findTicketFile(targetId);
+    if (foundTarget != null) {
+      final target = Ticket.fromFileContent(
+        targetId,
+        await foundTarget.file.readAsString(),
+        foundTarget.column,
+      );
       final updatedTarget = target.copyWith(
         links: target.links.where((l) => l.targetId != id).toList(),
       );
-      await File(_filePath(targetId)).writeAsString(updatedTarget.toFileContent());
+      await foundTarget.file.writeAsString(updatedTarget.toFileContent());
     }
 
     return (await findById(id))!;
@@ -137,22 +147,43 @@ class TicketStore {
     String? column,
     String? body,
   }) async {
-    final ticket = await findById(id);
-    if (ticket == null) throw ArgumentError('Ticket $id not found.');
-    final updated = ticket.copyWith(
-      title: title,
-      type: type,
-      column: column,
-      body: body,
-    );
-    await File(_filePath(id)).writeAsString(updated.toFileContent());
+    final found = await _findTicketFile(id);
+    if (found == null) throw ArgumentError('Ticket $id not found.');
+    final ticket = Ticket.fromFileContent(id, await found.file.readAsString(), found.column);
+    final updated = ticket.copyWith(title: title, type: type, column: column, body: body);
+    if (column != null && column != ticket.column) {
+      // Column changed — move the file to the new column directory.
+      await found.file.delete();
+      final newColDir = Directory(p.join(kanbanDir, column));
+      await newColDir.create(recursive: true);
+      await File(p.join(newColDir.path, '$id.md')).writeAsString(updated.toFileContent());
+    } else {
+      await found.file.writeAsString(updated.toFileContent());
+    }
     return updated;
   }
 
   Future<void> delete(String id) async {
-    final file = File(_filePath(id));
-    if (!await file.exists()) throw ArgumentError('Ticket $id not found.');
-    await file.delete();
+    final found = await _findTicketFile(id);
+    if (found == null) throw ArgumentError('Ticket $id not found.');
+    await found.file.delete();
+    // Clean up per-ticket attachment directory if present.
+    final attachmentsDir = Directory(p.join(kanbanDir, 'attachments', id));
+    if (await attachmentsDir.exists()) await attachmentsDir.delete(recursive: true);
+  }
+
+  /// Searches all column subdirectories (one level deep) for a ticket file.
+  /// Skips the [attachments] directory. Includes [archive].
+  Future<({File file, String column})?> _findTicketFile(String id) async {
+    final dir = Directory(kanbanDir);
+    if (!await dir.exists()) return null;
+    await for (final entity in dir.list()) {
+      if (entity is! Directory) continue;
+      if (p.basename(entity.path) == 'attachments') continue;
+      final file = File(p.join(entity.path, '$id.md'));
+      if (await file.exists()) return (file: file, column: p.basename(entity.path));
+    }
+    return null;
   }
 
   Future<int> _nextNumber() async {
@@ -161,16 +192,17 @@ class TicketStore {
     final pattern = RegExp(r'^' + RegExp.escape(prefix) + r'-(\d+)\.md$');
     var max = 0;
     await for (final entity in dir.list()) {
-      final match = pattern.firstMatch(p.basename(entity.path));
+      if (entity is! Directory || p.basename(entity.path) == 'attachments') continue;
+      await for (final file in entity.list()) {
+        final match = pattern.firstMatch(p.basename(file.path));
         if (match != null) {
           final n = int.parse(match.group(1)!);
           if (n > max) max = n;
         }
       }
+    }
     return max + 1;
   }
 
   String _formatId(int n) => '$prefix-${n.toString().padLeft(4, '0')}';
-
-  String _filePath(String id) => p.join(kanbanDir, '$id.md');
 }

packages/kanban/test/dew_kanban_test.dart

@@ -139,7 +139,7 @@ dew:
         body: 'Some body.',
         comments: ['First comment.', 'Second comment.'],
       );
-      final parsed = Ticket.fromFileContent(t.id, t.toFileContent());
+      final parsed = Ticket.fromFileContent(t.id, t.toFileContent(), t.column);
       expect(parsed.id, t.id);
       expect(parsed.title, t.title);
       expect(parsed.type, t.type);
@@ -159,7 +159,7 @@ dew:
         body: '',
         comments: const [],
       );
-      final parsed = Ticket.fromFileContent(t.id, t.toFileContent());
+      final parsed = Ticket.fromFileContent(t.id, t.toFileContent(), t.column);
       expect(parsed.body, '');
       expect(parsed.comments, isEmpty);
     });
@@ -178,7 +178,7 @@ dew:
           TicketLink(targetId: 'TEST-0002', type: 'relates_to'),
         ],
       );
-      final parsed = Ticket.fromFileContent(t.id, t.toFileContent());
+      final parsed = Ticket.fromFileContent(t.id, t.toFileContent(), t.column);
       expect(parsed.links, hasLength(2));
       expect(parsed.links[0].targetId, 'TEST-0001');
       expect(parsed.links[0].type, 'blocks');