Merge origin/master: adopt the DeepSeek Harness SDK product name

Reconciliations beyond textual conflicts:
- product rename (DeepSeek Code -> DeepSeek Harness SDK) applied to the
  PR-added assertion in system-prompt.spec.ts that master's rename
  commit could not reach
- architecture.md: master's rewrite kept; this PR's prompt-assembly
  semantics re-added in the new doc's voice (Turn Flow footnote +
  service-spine row), within the 1630-word ceiling
- cordis catalog regenerated into master's split events.md/services.md
  (events-and-services.md deleted); module graph and doc graphs
  regenerated to pick up this PR's new events and dependency edges

packages/core/system-prompt/tests/system-prompt.spec.ts

@@ -7,17 +7,17 @@ describe('SystemPrompt', () => {
     const ctx = new Context()
     await ctx.plugin(SystemPrompt)
 
-    ctx.systemPrompt.section({ name: 'persona', order: 0, text: 'You are DeepSeek Code.' })
+    ctx.systemPrompt.section({ name: 'persona', order: 0, text: 'You are DeepSeek Harness SDK.' })
     ctx.systemPrompt.section({ name: 'cwd', order: 20, text: () => 'cwd: /tmp' })
     ctx.systemPrompt.section({ name: 'rules', order: 10, text: 'Be precise.' })
     ctx.systemPrompt.tools(() => [{ name: 'echo', description: 'echo back', parameters: {} }])
 
     const assembly = await ctx.systemPrompt.assemble()
     expect(assembly.sections.map(s => s.name)).toEqual(['persona', 'rules', 'cwd'])
-    expect(assembly.sections.map(s => s.text)).toEqual(['You are DeepSeek Code.', 'Be precise.', 'cwd: /tmp'])
+    expect(assembly.sections.map(s => s.text)).toEqual(['You are DeepSeek Harness SDK.', 'Be precise.', 'cwd: /tmp'])
     expect(assembly.tools).toEqual([{ name: 'echo', description: 'echo back', parameters: {} }])
     expect(assembly.variables).toEqual({})
-    expect(renderPrompt(assembly)).toBe('You are DeepSeek Code.\n\nBe precise.\n\ncwd: /tmp')
+    expect(renderPrompt(assembly)).toBe('You are DeepSeek Harness SDK.\n\nBe precise.\n\ncwd: /tmp')
   })
 
   it('resolves section text providers against the assemble context, at each assemble call', async () => {

packages/core/tools/tests/gen-tool-catalog.spec.ts

@@ -93,10 +93,13 @@ describe('gen-tool-catalog render', () => {
       {
         pkg: '@deepseek-ai/dsh-tool-demo',
         source: 'packages/demo/tool-demo/src/index.ts',
+        requires: ['ctx.tools'],
+        writes: ['tool/result'],
         schemas: [{ name: 'demo', description: 'A demo tool.', parameters: { type: 'object', properties: {} } }],
       },
     ]
     const md = render(catalog)
+    expect(md).toContain('| `@deepseek-ai/dsh-tool-demo` | `demo` | `ctx.tools` | `tool/result` |')
     expect(md).toContain('## `@deepseek-ai/dsh-tool-demo`')
     expect(md).toContain('### `demo`')
     expect(md).toContain('A demo tool.')