feat(shared-triggers): visibility + tests + docs (M2.5)

- `shared` column in `pic triggers ls --group` (TriggerTemplateInfo + DTO +
  report + renderer).
- manager-core/tests/shared_triggers.rs: a shared write matches the group's
  shared trigger and NOT a same-named per-app trigger; a per-app write matches
  the app trigger and NOT the shared one (the `shared` flag is the boundary).
- shared_triggers journey: declarative authoring applies, ls --group shows
  shared, an undeclared-collection shared trigger + an app shared trigger are
  rejected.
- docs: §11.6 + CLAUDE.md move shared-collection triggers from Deferred to
  implemented.

Completes M2. (Pre-existing async-dispatcher timing flakes pass in isolation.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/picloud-cli/src/client.rs

@@ -1421,6 +1421,9 @@ pub struct TriggerTemplateDto {
     /// §11 tail: `true` for a sealed (non-suppressible) template.
     #[serde(default)]
     pub sealed: bool,
+    /// §11.6: `true` for a shared-collection template.
+    #[serde(default)]
+    pub shared: bool,
 }
 
 /// One row of the §11 tail route-template report.

crates/picloud-cli/src/cmds/triggers.rs

@@ -47,7 +47,7 @@ pub async fn ls_group(group: &str, mode: OutputMode) -> Result<()> {
     let creds = config::resolve()?;
     let client = Client::from_creds(&creds)?;
     let rows = client.group_triggers_list(group).await?;
-    let mut table = Table::new(["kind", "target", "script", "enabled", "sealed"]);
+    let mut table = Table::new(["kind", "target", "script", "enabled", "sealed", "shared"]);
     for t in rows {
         table.row([
             t.kind,
@@ -55,6 +55,7 @@ pub async fn ls_group(group: &str, mode: OutputMode) -> Result<()> {
             t.script,
             t.enabled.to_string(),
             t.sealed.to_string(),
+            t.shared.to_string(),
         ]);
     }
     table.print(mode);

crates/picloud-cli/tests/cli.rs

@@ -43,6 +43,7 @@ mod routes;
 mod scripts;
 mod sealed;
 mod secrets;
+mod shared_triggers;
 mod staleness;
 mod suppress;
 mod tree;

crates/picloud-cli/tests/shared_triggers.rs

@@ -0,0 +1,157 @@
+//! §11.6 — shared-collection triggers, declarative authoring end to end via
+//! `pic`. A group declares a shared kv collection + a `[[triggers.kv]]
+//! shared = true` handler watching it; the template applies, `pic triggers ls
+//! --group` shows `shared = true`; a shared trigger on an UNDECLARED collection
+//! is rejected, and `shared = true` on an app trigger is rejected.
+//!
+//! The live FIRING (a shared write matches the shared trigger, a per-app write
+//! does not) is pinned deterministically by
+//! `manager-core/tests/shared_triggers.rs` — driving the async dispatcher from a
+//! journey is deliberately avoided (codebase norm).
+
+use std::fs;
+
+use tempfile::TempDir;
+
+use crate::common;
+use crate::common::cleanup::{AppGuard, GroupGuard, ScriptGuard};
+
+fn manifest_dir() -> TempDir {
+    let dir = TempDir::new().expect("tempdir");
+    fs::create_dir_all(dir.path().join("scripts")).expect("scripts dir");
+    dir
+}
+
+fn group_script_id(env: &common::TestEnv, group: &str, name: &str) -> String {
+    let ls = common::pic_as(env)
+        .args(["scripts", "ls", "--group", group])
+        .output()
+        .expect("scripts ls");
+    let table = String::from_utf8(ls.stdout).unwrap();
+    table
+        .lines()
+        .map(common::cells)
+        .find(|c| c.get(2) == Some(&name))
+        .and_then(|c| c.first().map(|s| (*s).to_string()))
+        .unwrap_or_else(|| panic!("group script `{name}` not found:\n{table}"))
+}
+
+#[ignore = "needs DATABASE_URL pointing at a running Postgres"]
+#[test]
+fn shared_kv_trigger_applies_lists_and_validates() {
+    let Some(fx) = common::fixture_or_skip() else {
+        return;
+    };
+    let env = common::admin_env(fx);
+    let group = common::unique_slug("shtrig-grp");
+
+    let _g = GroupGuard::new(&env.url, &env.token, &group);
+    common::pic_as(&env)
+        .args(["groups", "create", &group])
+        .assert()
+        .success();
+
+    // Group handler for the shared collection.
+    let dir = manifest_dir();
+    fs::write(
+        dir.path().join("scripts/on-cat.rhai"),
+        r#"log::info("shared catalog write"); "ok""#,
+    )
+    .unwrap();
+    common::pic_as(&env)
+        .args(["scripts", "deploy"])
+        .arg(dir.path().join("scripts/on-cat.rhai"))
+        .args(["--group", &group, "--name", "on-cat"])
+        .assert()
+        .success();
+    let _gs = ScriptGuard::new(
+        &env.url,
+        &env.token,
+        &group_script_id(&env, &group, "on-cat"),
+    );
+
+    // Group declares a shared kv collection `catalog` + a shared kv trigger.
+    let gmanifest = format!(
+        "[group]\nslug = \"{group}\"\nname = \"ShTrigG\"\n\
+         collections = [{{ name = \"catalog\", kind = \"kv\" }}]\n\n\
+         [[triggers.kv]]\nscript = \"on-cat\"\ncollection_glob = \"catalog\"\nshared = true\n"
+    );
+    let gpath = dir.path().join("group.toml");
+    fs::write(&gpath, &gmanifest).unwrap();
+    common::pic_as(&env)
+        .args(["apply", "--file"])
+        .arg(&gpath)
+        .assert()
+        .success();
+
+    // `pic triggers ls --group` shows shared = true for the kv trigger.
+    let ls = String::from_utf8(
+        common::pic_as(&env)
+            .args(["triggers", "ls", "--group", &group])
+            .output()
+            .unwrap()
+            .stdout,
+    )
+    .unwrap();
+    let row = ls
+        .lines()
+        .map(common::cells)
+        .find(|c| c.contains(&"on-cat"))
+        .unwrap_or_else(|| panic!("no on-cat trigger row:\n{ls}"));
+    assert!(
+        row.contains(&"true"),
+        "the shared column must read true for the shared trigger:\n{ls}"
+    );
+
+    // A shared trigger on a collection the group does NOT declare shared is
+    // rejected at apply.
+    let bad_group = format!(
+        "[group]\nslug = \"{group}\"\nname = \"ShTrigG\"\n\
+         collections = [{{ name = \"catalog\", kind = \"kv\" }}]\n\n\
+         [[triggers.kv]]\nscript = \"on-cat\"\ncollection_glob = \"undeclared\"\nshared = true\n"
+    );
+    fs::write(&gpath, &bad_group).unwrap();
+    let out = common::pic_as(&env)
+        .args(["apply", "--file"])
+        .arg(&gpath)
+        .output()
+        .expect("apply bad");
+    assert!(
+        !out.status.success(),
+        "a shared trigger on an undeclared collection must be rejected"
+    );
+
+    // `shared = true` on an APP trigger is rejected.
+    let app = common::unique_slug("shtrig-app");
+    let _a = AppGuard::new(&env.url, &env.token, &app);
+    common::pic_as(&env)
+        .args(["apps", "create", &app])
+        .assert()
+        .success();
+    fs::write(
+        dir.path().join("scripts/app-h.rhai"),
+        r#"log::info("app"); "ok""#,
+    )
+    .unwrap();
+    let amanifest = format!(
+        "[app]\nslug = \"{app}\"\nname = \"App\"\n\n\
+         [[scripts]]\nname = \"app-h\"\nfile = \"scripts/app-h.rhai\"\n\n\
+         [[triggers.kv]]\nscript = \"app-h\"\ncollection_glob = \"widgets\"\nshared = true\n"
+    );
+    let apath = dir.path().join("app.toml");
+    fs::write(&apath, &amanifest).unwrap();
+    let out = common::pic_as(&env)
+        .args(["apply", "--file"])
+        .arg(&apath)
+        .output()
+        .expect("apply app");
+    assert!(
+        !out.status.success(),
+        "a shared trigger on an app is rejected (apps don't own shared collections)"
+    );
+    let err = String::from_utf8_lossy(&out.stderr);
+    assert!(
+        err.to_lowercase().contains("shared"),
+        "the rejection must mention shared:\n{err}"
+    );
+}