feat: add claude-code llm backend with runtime port (#115)

* docs: revise claude-code ingest backend spec

* docs: keep claude-code spec focused on ingest

* docs: expand claude-code spec to full llm parity

* Refine claude-code backend spec after adversarial review iteration 1

* Refine claude-code backend spec after adversarial review iteration 2

* Refine claude-code backend spec after adversarial review iteration 3

* feat: recognize claude-code llm backend

* feat: add ktx llm runtime port

* feat: add claude-code llm runtime

* feat: route non-agent llm calls through runtime

* feat: run ingest agents through llm runtime

* feat: support claude-code setup and status

* test: verify claude-code backend runtime

* docs: add claude-code backend v1 runtime plan

* fix: close claude-code runtime isolation checks

* fix: warn on claude-code prompt caching during setup

* chore: verify claude-code v1 closure

* docs: add claude-code backend v1 isolation closure plan

* fix: update claude-code ingest setup guidance

* docs: add claude-code backend v1 ingest guidance closure plan

* docs: align claude-code isolation spec with sdk metadata

* test: cover claude-code host discovery metadata

* fix: tolerate claude-code host discovery metadata

* docs: clarify claude-code host discovery metadata

* docs: add claude-code auth-probe isolation fix plan

* chore: prepare kaelio ktx rc1 release

* chore: add semantic release workflow

* fix: unblock ci checks

* chore(release): 0.1.0-rc.1

* feat: add Claude Code model selection to setup

* fix: keep git maintenance attached in local repos

docs-site/content/docs/cli-reference/ktx-setup.mdx

@@ -51,17 +51,21 @@ scripted project creation. They are not shown in `ktx setup --help`.
 
 | Flag | Description |
 |------|-------------|
-| `--llm-backend <backend>` | LLM backend: `anthropic` or `vertex` |
+| `--llm-backend <backend>` | LLM backend: `anthropic`, `vertex`, or `claude-code` |
+| `--llm-backend claude-code` | Use the local Claude Code session for KTX LLM calls |
+| `--llm-model <model>` | LLM model ID or backend model alias to validate and save |
 | `--anthropic-api-key-env <name>` | Environment variable containing the Anthropic API key |
 | `--anthropic-api-key-file <path>` | File containing the Anthropic API key |
-| `--anthropic-model <model>` | Anthropic model ID to validate and save |
+| `--anthropic-model <model>` | Legacy alias for `--llm-model` |
 | `--vertex-project <project>` | Vertex AI project ID, `env:NAME`, or `file:/path` reference |
 | `--vertex-location <location>` | Vertex AI location, `env:NAME`, or `file:/path` reference |
 | `--skip-llm` | Leave LLM setup incomplete |
 
 Choose only one Anthropic credential source. Anthropic credential flags are only
 valid with the Anthropic backend; Vertex flags are only valid with the Vertex
-backend.
+backend. The `claude-code` backend uses local Claude Code authentication instead
+of Anthropic API key or Vertex flags. For Claude Code, `--llm-model` accepts
+`sonnet`, `opus`, `haiku`, or a full Claude model ID.
 
 ### Embeddings
 
@@ -142,6 +146,12 @@ ktx setup
 # Run setup for a specific project directory
 ktx setup --project-dir ./analytics
 
+# Use Claude Code with Opus for KTX LLM calls
+ktx setup \
+  --project-dir ./analytics \
+  --llm-backend claude-code \
+  --llm-model opus
+
 # Script a Postgres connection that reads its URL from the environment
 ktx setup \
   --project-dir ./analytics \

docs-site/content/docs/cli-reference/ktx-status.mdx

@@ -47,6 +47,10 @@ ktx status --project-dir ./analytics
 `ktx status` prints grouped doctor checks. Agents should use
 `ktx status --json --no-input` when they need to branch on readiness state.
 
+For `llm.provider.backend: claude-code`, `ktx status` checks that the local
+Claude Code session is usable. If auth fails, run the Claude Code CLI login
+flow, then rerun `ktx status`.
+
 ```json
 {
   "title": "KTX project doctor",