Merge origin/master into timeout-design

Resolve conflicts from master's catalog/doc refactors landing alongside the
tool-call timeout work:
- knip.json: keep both new workspace entries (util/timeout + support/acp-snapshot).
- tool-web/src/fetch.ts: keep the timeout_ms removal, adopt master's richer
  JSDoc @param/@returns style on parseFetchArgs/presentFetchCall.
- tools/README.md: keep the tools/execute pipeline wording, adopt master's
  flattened docs/tool-catalog.md path.
- Regenerate every generated doc (cordis-catalog, tool-catalog, config-catalog,
  doc-graphs, module-graph) so they carry both master's changes and the
  tools/execute event + timeout-policy package.
- Add @param/@returns to toolTimeoutResult for master's new verify-export-jsdoc gate.

docs/cordis-catalog/services.md

@@ -21,7 +21,7 @@ createAgent(options: CreateAgentOptions): AgentHandle
 async resume(options: ResumeAgentOptions): Promise<AgentHandle>
 ```
 
-Source: [`packages/core/agent-loop/src/index.ts:63`](../../packages/core/agent-loop/src/index.ts)
+Source: [`packages/core/agent-loop/src/index.ts:68`](../../packages/core/agent-loop/src/index.ts)
 
 ## `ctx.agents` — `AgentRegistry`
 
@@ -124,7 +124,7 @@ stream(options: GenerateOptions): AsyncIterable<StreamChunk>
 
 Types: [GenerateOptions](../core-data-structures/core.md) · [StreamChunk](../core-data-structures/llm-streaming.md)
 
-Source: [`packages/llm/llm/src/index.ts:84`](../../packages/llm/llm/src/index.ts)
+Source: [`packages/llm/llm/src/index.ts:88`](../../packages/llm/llm/src/index.ts)
 
 ## `ctx.sessionPersistence` — `SessionPersistence` (abstract seam)
 
@@ -146,7 +146,7 @@ abstract list(): Promise<SessionHeader[]>
 
 Types: [SessionEvent](../core-data-structures/core.md)
 
-Source: [`packages/session-persistence/session-persistence/src/index.ts:98`](../../packages/session-persistence/session-persistence/src/index.ts)
+Source: [`packages/session-persistence/session-persistence/src/index.ts:102`](../../packages/session-persistence/session-persistence/src/index.ts)
 
 ## `ctx.sessions` — `SessionStore`
 
@@ -161,9 +161,10 @@ enter(session: Session): () => void
 announce(session: Session): void
 get(id: SessionId): Session | undefined
 list(): Session[]
+fork(source: SessionForkSource, boundary?: number, childSessionId?: SessionId): Session
 ```
 
-Source: [`packages/core/session/src/index.ts:371`](../../packages/core/session/src/index.ts)
+Source: [`packages/core/session/src/index.ts:405`](../../packages/core/session/src/index.ts)
 
 ## `ctx.subagents` — `SubagentService`
 
@@ -186,10 +187,10 @@ Registry service (`ctx.systemPrompt`): plugins contribute ordered text sections,
 section(section: PromptSection): () => void
 tools(provider: () => ToolSchema[]): () => void
 variable(name: string, provider: (context: AssembleContext) => string | undefined): () => void
-assemble(context: AssembleContext = {}): Promise<PromptAssembly>
+async assemble(context: AssembleContext = {}): Promise<PromptAssembly>
 ```
 
-Source: [`packages/core/system-prompt/src/index.ts:198`](../../packages/core/system-prompt/src/index.ts)
+Source: [`packages/core/system-prompt/src/index.ts:291`](../../packages/core/system-prompt/src/index.ts)
 
 ## `ctx.tools` — `ToolRegistry`
 
@@ -204,7 +205,7 @@ async execute(exec: ToolExecution): Promise<ToolExecutionResult>
 
 Types: [ToolDefinition](../core-data-structures/tools.md) · [ToolExecution](../core-data-structures/tools.md) · [ToolExecutionResult](../core-data-structures/tools.md)
 
-Source: [`packages/core/tools/src/index.ts:289`](../../packages/core/tools/src/index.ts)
+Source: [`packages/core/tools/src/index.ts:299`](../../packages/core/tools/src/index.ts)
 
 ## `ctx.web` — `WebService`