test(review-army): share the recorded Step 4.5 staging with consensus and supply its Red Team

review-army-consensus (periodic) timed out in 2 of 13 census sessions; passing
runs took 213-297 s of 300. Like N+1 it spent ~30-50 s reading the whole
extracted SKILL, checklist and every specialist file, sometimes dispatched an
unrequested Maintainability specialist, then ran a Red Team (60-70 s) and a
second merge before writing a 9-15 KB report.

The N+1 staging and scope text move into stageReviewArmySession /
reviewArmyScope / reviewArmyChecklists (the N+1 prompt renders byte-identical).
Consensus now records its detect-scope, stats, learnings and diff, stages the
Review Army section with the security and testing checklists, forces
--security --testing, and caps the report like N+1. Its Red Team is outside
the multi-specialist contract, so the fixture supplies a labeled synthetic
NO FINDINGS result instead of a dispatch. The existing SQL-finding and
browser-error assertions are unchanged; the lifecycle adapter's spawnSync now
returns the git output the staging reads.

test/review-consensus-lifecycle.test.ts

@@ -13,7 +13,7 @@ async function exercise(scenarios: Array<'success'|'timeout'|'wrong-report'|'bro
     beforeAll:(fn:any)=>setups.push(fn),afterAll:(fn:any)=>done.push(fn),
     describeIfSelected:(_title:string,names:string[],fn:any)=>{if(names.includes('review-army-consensus'))fn();},
     testConcurrentIfSelected:(name:string,fn:any,timeout:number)=>{expect(name).toBe('review-army-consensus');callbacks.push(fn);outer=timeout;},
-    createEvalCollector:()=>({}),finalizeEvalCollector:()=>{},logCost:()=>{},spawnSync:()=>({status:0}),path:fixturePath,os:{tmpdir:()=>'/tmp'},
+    createEvalCollector:()=>({}),finalizeEvalCollector:()=>{},logCost:()=>{},spawnSync:(_cmd:string,args:string[])=>({status:0,stdout:args[0]!=='diff'?'':args.includes('--shortstat')?' 1 file changed, 12 insertions(+)\n':'diff --git a/auth_controller.rb b/auth_controller.rb\n'}),path:fixturePath,os:{tmpdir:()=>'/tmp'},
     fs:{mkdirSync:()=>{},readdirSync:()=>[],mkdtempSync:(p:string)=>p+'owned',writeFileSync:(p:string,s:string)=>files.set(p,s),copyFileSync:()=>{},rmSync:()=>{},
       existsSync:(p:string)=>files.has(p),readFileSync:(p:string)=>p.startsWith(sourceRoot+fixturePath.sep)?'synthetic fixture bytes '.repeat(30):files.get(p)},
     extractSkillSections:()=> 'Review instructions',REVIEW_ARMY_E2E_SECTIONS:[],