Add task management system documentation to Project Instructions

- Documented tasks-active system (individual task files)
- Explained Decap CMS primary interface
- Defined priority levels (0-4) and status values
- Added workflow for creating/updating/completing tasks
- Linked to full system docs in tasks-active/README.md

For Future Chroniclers:
- Clear guidance on task creation workflow
- Decap CMS vs Git edit options explained
- Link to deep dive in tasks-active/README.md
- Ensures system continuity across sessions

docs/maintenance/project-instructions-REPLACEMENT-2026-04-04.md

@@ -44,6 +44,68 @@ git config user.name "Claude"
 
 **Then ask Michael what needs to be done.**
 
+### Task Management System
+
+**As of April 7, 2026:** Tasks are managed in **two places**:
+
+#### 1. Decap CMS (Primary Interface)
+- **URL:** https://firefrostgaming.com/admin
+- **Collection:** 🔥 TASKS
+- **Location:** `docs/tasks-active/` folder
+- **Format:** Individual markdown files (one per task)
+
+**Each task file includes:**
+- Frontmatter: task_number, title, priority, status, is_blocker, tags, estimated_hours
+- Summary: Overview, current state, next steps
+- Link to full spec in `/docs/tasks/`
+
+**Priority Levels:**
+- `0` = BLOCKER (soft launch critical)
+- `1` = HIGH (revenue impact or force multiplier)
+- `2` = MEDIUM (important but not urgent)
+- `3` = LOW (backlog, do when time allows)
+- `4` = PERSONAL (Michael/Meg/Holly personal projects)
+
+**Status Values:** PLANNED, READY, IN_PROGRESS, BLOCKED, COMPLETE
+
+#### 2. Full Task Specs (Deep Storage)
+- **Location:** `docs/tasks/task-[NUMBER]-[name]/`
+- **Contains:** Complete implementation guides, architecture docs, code examples
+- **Referenced from:** task-active files via "Full Spec Location" section
+
+#### Creating a New Task
+
+**Process:**
+1. Create full spec in `/docs/tasks/task-[NUMBER]-[name]/README.md`
+2. Create summary in `/docs/tasks-active/task-[NUMBER]-[slug].md`
+3. Update `/BACKLOG.md` table (for now, until fully migrated)
+4. Commit all three
+
+**Template:** Copy frontmatter from any existing task-active file
+
+#### Updating a Task
+
+**Via Decap CMS (Easiest):**
+1. Visit https://firefrostgaming.com/admin
+2. Click 🔥 TASKS
+3. Click the task
+4. Edit fields or markdown
+5. Save (draft) or Publish (live)
+
+**Via Git:**
+1. Edit `/docs/tasks-active/task-[NUMBER]-[slug].md`
+2. Commit and push
+3. Changes appear in Decap CMS automatically
+
+#### Completing a Task
+
+1. Set status to `COMPLETE` in task-active file
+2. Add `completed_date: YYYY-MM-DD` frontmatter
+3. Note completion in task body
+4. Leave full spec in `/docs/tasks/` (never delete)
+
+**Read the full system docs:** `/docs/tasks-active/README.md`
+
 ### Current Architecture (April 2026)
 
 | Component | Technology | Location |