WIP: stage all uncommitted work — sprints 46-221, graduation headers, specialist fleet, test steps 909-1988

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

sprint125_plan.md

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+# Sprint 125 Plan: Batch Debug Automation and Safety Envelopes
+
+## Context
+
+Sprints 121-124 established deterministic debug artifacts and guarded patch
+execution. Sprint 125 scales this into batch workflows with safety envelopes,
+prioritization, and deterministic campaign reports suitable for SLM fleets.
+
+---
+
+## Goals
+
+1. Add batch campaign models for multi-target debugging
+2. Add safety envelope policies for stop/continue decisions
+3. Add MCP tools to run, monitor, and summarize debug campaigns
+4. Keep deterministic output and reproducible ordering throughout
+
+---
+
+## Steps
+
+### Step 1489: Debug campaign spec model (12 tests)
+### Step 1490: Campaign target prioritizer (10 tests)
+### Step 1491: Safety envelope policy model (10 tests)
+### Step 1492: Campaign progress tracker model (8 tests)
+### Step 1493: `whetstone_start_debug_campaign` MCP tool (8 tests)
+### Step 1494: `whetstone_step_debug_campaign` MCP tool (8 tests)
+### Step 1495: `whetstone_get_debug_campaign_status` MCP tool (8 tests)
+### Step 1496: `whetstone_stop_debug_campaign` MCP tool (8 tests)
+### Step 1497: Campaign report bundle generator (8 tests)
+### Step 1498: Sprint 125 integration summary + regression (8 tests)
+
+---
+
+## Architecture Gate
+
+- Campaign decisions must remain deterministic
+- Safety envelope violations must halt campaign immediately
+- Campaign status is fully machine-readable and replayable
+- Max 600 lines per header