feat(compact): move pairing helpers (PR1 round 1)

docs/cordis-catalog/events.md

@@ -245,7 +245,7 @@ Creation announcement during session publication. A synchronous throw vetoes and
 'session/created'(this: Scoped<Session>, session: Session): void
 ```
 
-Source: [`packages/core/session/src/index.ts:47`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:46`](../../packages/core/session/src/index.ts)
 
 ### `session/disposed` — emit
 
@@ -255,7 +255,7 @@ Emitted once when an announced session leaves the store, including publication r
 'session/disposed'(this: Scoped<Session>, session: Session): void
 ```
 
-Source: [`packages/core/session/src/index.ts:57`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:56`](../../packages/core/session/src/index.ts)
 
 ### `session/event` — emit
 
@@ -267,7 +267,7 @@ Post-commit, fire-and-forget append feed. The listener snapshot resolves before
 
 Types: [SessionEvent](../core-data-structures/core.md)
 
-Source: [`packages/core/session/src/index.ts:69`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:68`](../../packages/core/session/src/index.ts)
 
 ### `session/flush` — parallel
 
@@ -277,7 +277,7 @@ Awaited parallel durability checkpoint: every listener runs and the caller await
 'session/flush'(this: Scoped<Session>, session: Session): Promise<void> | void
 ```
 
-Source: [`packages/core/session/src/index.ts:79`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:78`](../../packages/core/session/src/index.ts)
 
 ## `skill/*`
 

docs/cordis-catalog/services.md

@@ -95,7 +95,7 @@ abstract compactRegion( session: Session, start: number, end: number, agent: Com
 
 Types: [Message](../core-data-structures/core.md)
 
-Source: [`packages/compact/compact/src/index.ts:36`](../../packages/compact/compact/src/index.ts)
+Source: [`packages/compact/compact/src/index.ts:37`](../../packages/compact/compact/src/index.ts)
 
 ## `ctx.fs` — `FileSystem` (abstract seam)
 
@@ -200,7 +200,7 @@ list(): Session[]
 fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session
 ```
 
-Source: [`packages/core/session/src/index.ts:564`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:563`](../../packages/core/session/src/index.ts)
 
 ## `ctx.skills` — `SkillService`