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>

sprint198_plan.md

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+# Sprint 198 Plan: Long-Range Edit Reliability III (Execution)
+
+## Context
+Need transactional execution engine for long-range plans.
+
+## Goals
+1. Execute long-range plans transactionally
+2. Support partial failure rollback
+3. Persist deterministic execution traces
+
+## Steps
+
+### Step 2029: Transactional long-range executor (10 tests)
+Execute graph-ordered edits with transaction boundaries.
+
+### Step 2030: Partial failure rollback engine (10 tests)
+Rollback to nearest deterministic checkpoint on failure.
+
+### Step 2031: Multi-file conflict detection during execution (8 tests)
+Detect and classify cross-file edit conflicts.
+
+### Step 2032: Execution trace and recovery packet export (8 tests)
+Persist per-node execution and rollback traces.
+
+### Step 2033: Sprint 198 Integration Summary (8 tests)
+Add `editor/src/Sprint198IntegrationSummary.h`.
+
+## Architecture Gate
+- Long-range execution must be transaction-safe with deterministic rollback.