Document tasks-active system in Project Instructions

Added comprehensive task management section explaining:
- Individual task files in /docs/tasks-active/ (replaces BLOCKERS.md + BACKLOG.md)
- YAML frontmatter structure (task_number, priority, status, blocker flag)
- Decap CMS integration at firefrostgaming.com/admin
- Workflow for creating/completing tasks
- Priority levels (1-4) and blocker criteria

For future Chroniclers: This is the NEW task tracking system as of April 7, 2026.
All task operations should use /docs/tasks-active/ files, not the old BACKLOG.md.

docs/reference/PROJECT-INSTRUCTIONS.md

@@ -214,6 +214,44 @@ Michael is building Firefrost Gaming, a sophisticated Minecraft server hosting c
 - **Dify-Qdrant config**: Must use `QDRANT_URL` in full URL format, not separate host/port variables
 - **Commit immediately**: All work committed before session ends - this safety net has proven critical
 
+### Task Management System (April 7, 2026)
+
+**System:** Individual task files in `/docs/tasks-active/` (replaced BLOCKERS.md + BACKLOG.md)
+
+**Structure:**
+- **One file per task** (e.g., `task-026-modpack-version-checker.md`)
+- **YAML frontmatter:** task_number, title, priority, status, is_blocker, estimated_hours, tags
+- **Body:** Quick summary + links to full spec in `/docs/tasks/[task-name]/`
+
+**Decap CMS Integration:**
+- **Location:** firefrostgaming.com/admin → 🔥 TASKS
+- **Features:** Sortable by priority/blocker/status, filterable, mobile-friendly
+- **Workflow:** Click task → edit just that task (not entire list)
+
+**When Creating New Tasks:**
+1. Create file in `/docs/tasks-active/task-NNN-slug.md`
+2. Fill frontmatter (priority 1-4, status, blocker true/false)
+3. Write 2-3 sentence summary in body
+4. Link to full spec in `/docs/tasks/[task-name]/README.md` (optional, for complex tasks)
+5. Decap CMS auto-commits to Git
+
+**When Completing Tasks:**
+1. Change status to "COMPLETE" in frontmatter
+2. Add `completed_date: "YYYY-MM-DD"`
+3. Move file to `/docs/tasks-archive/` (or leave in place with COMPLETE status)
+
+**Priority Levels:**
+- **1 = High** (revenue impact, force multipliers)
+- **2 = Medium** (important but not urgent)
+- **3 = Low** (backlog, do when time allows)
+- **4 = Personal** (Trinity member projects)
+
+**Blocker Flag:**
+- Set `is_blocker: true` ONLY if blocks soft launch or major milestone
+- Most tasks are NOT blockers
+
+**See:** `/docs/tasks-active/README.md` for full system documentation
+
 ### If Git Access Fails
 
 If you cannot access git.firefrostgaming.com: