Make the CLI point users at the real install source

The next repo-local backlog item was ROADMAP #70: users could
mistake third-party pages or the deprecated `cargo install
claw-code` path for the official install route. The CLI now
surfaces the source of truth directly in `claw doctor` and
`claw --help`, and the roadmap closeout records the change.

Constraint: Keep the fix inside repo-local Rust CLI surfaces instead of relying on docs alone
Rejected: Close #70 with README-only wording | the bug was user-facing CLI ambiguity, so the warning needed to appear in runtime help/doctor output
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: If install guidance changes later, update both the doctor check payload and the help-text warning together
Tested: cargo fmt --all --check; cargo clippy --workspace --all-targets -- -D warnings; cargo test --workspace; architect review APPROVE
Not-tested: Third-party websites outside this repo that may still present stale install instructions

ROADMAP.md

@@ -512,4 +512,4 @@ Model name prefix now wins unconditionally over env-var presence. Regression tes
 
 69. **Lane stop summaries have no minimum quality floor** — **done (verified 2026-04-12):** completed lane persistence in `rust/crates/tools/src/lib.rs` now normalizes vague/control-only stop summaries into a contextual fallback that includes the lane target and status, while preserving structured metadata about whether the quality floor fired (`qualityFloorApplied`, `rawSummary`, `reasons`, `wordCount`). Regression coverage locks both the pass-through path for good summaries and the fallback path for mushy summaries like `commit push everyting, keep sweeping $ralph`. **Original filing below.**
 
-70. **Install-source ambiguity misleads real users** — community observation 2026-04-12. User treated `claw-code.io` as official, then hit `clawcode` vs deprecated `claw-code` naming collision and concluded install story was inconsistent. Source-of-truth is not obvious when website/repo/crates naming diverges. **Fix shape:** canonical repo docs should explicitly state which site is official; installation guidance should visibly warn against deprecated `claw-code` crate and ambiguous third-party pages. Blocker: none. Source: gaebal-gajae community watch 2026-04-12.
+70. **Install-source ambiguity misleads real users** — **done (verified 2026-04-12):** repo-local Rust guidance now makes the source of truth explicit in `claw doctor` and `claw --help`, naming `ultraworkers/claw-code` as the canonical repo and warning that `cargo install claw-code` installs a deprecated stub rather than the `claw` binary. Regression coverage locks both the new doctor JSON check and the help-text warning. **Original filing below.**

rust/crates/rusty-claude-cli/src/main.rs

@@ -78,6 +78,9 @@ const INTERNAL_PROGRESS_HEARTBEAT_INTERVAL: Duration = Duration::from_secs(3);
 const POST_TOOL_STALL_TIMEOUT: Duration = Duration::from_secs(10);
 const PRIMARY_SESSION_EXTENSION: &str = "jsonl";
 const LEGACY_SESSION_EXTENSION: &str = "json";
+const OFFICIAL_REPO_URL: &str = "https://github.com/ultraworkers/claw-code";
+const OFFICIAL_REPO_SLUG: &str = "ultraworkers/claw-code";
+const DEPRECATED_INSTALL_COMMAND: &str = "cargo install claw-code";
 const LATEST_SESSION_REFERENCE: &str = "latest";
 const SESSION_REFERENCE_ALIASES: &[&str] = &[LATEST_SESSION_REFERENCE, "last", "recent"];
 const CLI_OPTION_SUGGESTIONS: &[&str] = &[
@@ -1477,6 +1480,7 @@ fn render_doctor_report() -> Result<DoctorReport, Box<dyn std::error::Error>> {
         checks: vec![
             check_auth_health(),
             check_config_health(&config_loader, config.as_ref()),
+            check_install_source_health(),
             check_workspace_health(&context),
             check_sandbox_health(&context.sandbox_status),
             check_system_health(&cwd, config.as_ref().ok()),
@@ -1764,6 +1768,36 @@ fn check_config_health(
     }
 }
 
+fn check_install_source_health() -> DiagnosticCheck {
+    DiagnosticCheck::new(
+        "Install source",
+        DiagnosticLevel::Ok,
+        format!(
+            "official source of truth is {OFFICIAL_REPO_SLUG}; avoid `{DEPRECATED_INSTALL_COMMAND}`"
+        ),
+    )
+    .with_details(vec![
+        format!("Official repo     {OFFICIAL_REPO_URL}"),
+        "Recommended path  build from this repo or use the upstream binary documented in README.md"
+            .to_string(),
+        format!(
+            "Deprecated crate  `{DEPRECATED_INSTALL_COMMAND}` installs a deprecated stub and does not provide the `claw` binary"
+        )
+            .to_string(),
+    ])
+    .with_data(Map::from_iter([
+        ("official_repo".to_string(), json!(OFFICIAL_REPO_URL)),
+        (
+            "deprecated_install".to_string(),
+            json!(DEPRECATED_INSTALL_COMMAND),
+        ),
+        (
+            "recommended_install".to_string(),
+            json!("build from source or follow the upstream binary instructions in README.md"),
+        ),
+    ]))
+}
+
 fn check_workspace_health(context: &StatusContext) -> DiagnosticCheck {
     let in_repo = context.project_root.is_some();
     DiagnosticCheck::new(
@@ -8111,6 +8145,11 @@ fn print_help_to(out: &mut impl Write) -> io::Result<()> {
         out,
         "      Diagnose local auth, config, workspace, and sandbox health"
     )?;
+    writeln!(out, "      Source of truth: {OFFICIAL_REPO_SLUG}")?;
+    writeln!(
+        out,
+        "      Warning: do not `{DEPRECATED_INSTALL_COMMAND}` (deprecated stub)"
+    )?;
     writeln!(out, "  claw dump-manifests [--manifests-dir PATH]")?;
     writeln!(out, "  claw bootstrap-plan")?;
     writeln!(out, "  claw agents")?;
@@ -8200,6 +8239,11 @@ fn print_help_to(out: &mut impl Write) -> io::Result<()> {
     writeln!(out, "  claw mcp show my-server")?;
     writeln!(out, "  claw /skills")?;
     writeln!(out, "  claw doctor")?;
+    writeln!(out, "  source of truth: {OFFICIAL_REPO_URL}")?;
+    writeln!(
+        out,
+        "  do not run `{DEPRECATED_INSTALL_COMMAND}` — it installs a deprecated stub"
+    )?;
     writeln!(out, "  claw init")?;
     writeln!(out, "  claw export")?;
     writeln!(out, "  claw export conversation.md")?;
@@ -10082,6 +10126,8 @@ mod tests {
         assert!(help.contains("claw mcp"));
         assert!(help.contains("claw skills"));
         assert!(help.contains("claw /skills"));
+        assert!(help.contains("ultraworkers/claw-code"));
+        assert!(help.contains("cargo install claw-code"));
         assert!(!help.contains("claw login"));
         assert!(!help.contains("claw logout"));
     }

rust/crates/rusty-claude-cli/tests/output_format_contract.rs

@@ -209,7 +209,7 @@ fn doctor_and_resume_status_emit_json_when_requested() {
     assert!(summary["failures"].as_u64().is_some());
 
     let checks = doctor["checks"].as_array().expect("doctor checks");
-    assert_eq!(checks.len(), 5);
+    assert_eq!(checks.len(), 6);
     let check_names = checks
         .iter()
         .map(|check| {
@@ -221,7 +221,27 @@ fn doctor_and_resume_status_emit_json_when_requested() {
         .collect::<Vec<_>>();
     assert_eq!(
         check_names,
-        vec!["auth", "config", "workspace", "sandbox", "system"]
+        vec![
+            "auth",
+            "config",
+            "install source",
+            "workspace",
+            "sandbox",
+            "system"
+        ]
+    );
+
+    let install_source = checks
+        .iter()
+        .find(|check| check["name"] == "install source")
+        .expect("install source check");
+    assert_eq!(
+        install_source["official_repo"],
+        "https://github.com/ultraworkers/claw-code"
+    );
+    assert_eq!(
+        install_source["deprecated_install"],
+        "cargo install claw-code"
     );
 
     let workspace = checks