feat(cli): add pic command-line client (login, apps, scripts, logs)

Adds a new workspace crate `picloud-cli` shipping a `pic` binary that
drives the edit-deploy-invoke-tail-logs loop against PiCloud's admin
and execute HTTP surface. Eight subcommands cover the minimum a
developer needs to never open the dashboard:

  pic login                    (paste URL + bearer token, validates via /auth/me)
  pic whoami                   (re-validates and prints principal)
  pic apps ls | create
  pic scripts ls | deploy | invoke
  pic logs <id>

Credentials persist as TOML under the platform config dir (resolved
via `directories`); on POSIX the file is forced to mode 0600.
PICLOUD_URL + PICLOUD_TOKEN env vars short-circuit interactive prompts
for CI and integration tests.

The CLI redeclares minimal request/response structs in `client.rs`
rather than depending on `manager-core` — keeps the blast radius
contained without touching the existing crate boundaries.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

@@ -0,0 +1,178 @@
+//! `pic scripts ls | deploy | invoke`.
+
+use std::io::{self, Read, Write};
+use std::path::Path;
+
+use anyhow::{anyhow, Context, Result};
+use serde_json::Value;
+
+use crate::client::{Client, CreateScriptBody};
+use crate::config::load;
+use crate::output::Table;
+
+pub async fn ls(app: Option<&str>) -> Result<()> {
+    let creds = load()?;
+    let client = Client::from_creds(&creds)?;
+
+    let mut table = Table::new(["id", "app_slug", "name", "version", "updated_at"]);
+
+    if let Some(ident) = app {
+        let app = client.apps_get(ident).await?;
+        let scripts = client.scripts_list_by_app(&app.app.slug).await?;
+        for s in scripts {
+            table.row([
+                s.id.to_string(),
+                app.app.slug.clone(),
+                s.name,
+                s.version.to_string(),
+                s.updated_at.to_rfc3339(),
+            ]);
+        }
+    } else {
+        // No filter → walk every accessible app. One request per app is
+        // fine at MVP scale (handful of apps); a bulk endpoint can come
+        // later if the count grows.
+        let apps = client.apps_list().await?;
+        for a in apps {
+            let scripts = client.scripts_list_by_app(&a.slug).await?;
+            for s in scripts {
+                table.row([
+                    s.id.to_string(),
+                    a.slug.clone(),
+                    s.name,
+                    s.version.to_string(),
+                    s.updated_at.to_rfc3339(),
+                ]);
+            }
+        }
+    }
+    table.print();
+    Ok(())
+}
+
+pub async fn deploy(
+    file: &Path,
+    app_ident: &str,
+    name_override: Option<&str>,
+    description: Option<&str>,
+) -> Result<()> {
+    let creds = load()?;
+    let client = Client::from_creds(&creds)?;
+
+    let source =
+        std::fs::read_to_string(file).with_context(|| format!("reading {}", file.display()))?;
+    let name = match name_override {
+        Some(n) => n.to_string(),
+        None => file
+            .file_stem()
+            .and_then(|s| s.to_str())
+            .map(str::to_string)
+            .ok_or_else(|| {
+                anyhow!(
+                    "could not derive script name from path {} (use --name)",
+                    file.display()
+                )
+            })?,
+    };
+
+    // Slug-or-id resolution: a single GET satisfies both lookups and
+    // gives us the canonical app_id needed for create.
+    let app = client.apps_get(app_ident).await?;
+
+    let existing = client.scripts_list_by_app(app_ident).await?;
+    if let Some(s) = existing.into_iter().find(|s| s.name == name) {
+        let updated = client
+            .scripts_update_source(&s.id.to_string(), &source)
+            .await?;
+        println!("Updated {} v{}", updated.name, updated.version);
+    } else {
+        let body = CreateScriptBody {
+            app_id: app.app.id,
+            name: &name,
+            description,
+            source: &source,
+        };
+        let created = client.scripts_create(&body).await?;
+        println!("Created {} v{}", created.name, created.version);
+    }
+    Ok(())
+}
+
+pub async fn invoke(id: &str, body_arg: Option<&str>, headers: &[(String, String)]) -> Result<()> {
+    let creds = load()?;
+    let client = Client::from_creds(&creds)?;
+
+    let body = parse_body_arg(body_arg)?;
+    let resp = client.execute(id, body, headers).await?;
+    // Status to stderr so stdout stays JSON for piping into jq.
+    let _ = writeln!(io::stderr(), "<- HTTP {}", resp.status_code);
+    let pretty = serde_json::to_string_pretty(&resp.body).unwrap_or_else(|_| resp.body.to_string());
+    println!("{pretty}");
+    if (200..400).contains(&resp.status_code) {
+        Ok(())
+    } else {
+        Err(anyhow!("execute returned HTTP {}", resp.status_code))
+    }
+}
+
+fn parse_body_arg(arg: Option<&str>) -> Result<Value> {
+    match arg {
+        None => Ok(Value::Object(serde_json::Map::new())),
+        Some("@-") => {
+            let mut buf = String::new();
+            io::stdin()
+                .read_to_string(&mut buf)
+                .context("reading stdin")?;
+            parse_or_string(&buf)
+        }
+        Some(raw) if raw.starts_with('@') => {
+            let path = &raw[1..];
+            let text = std::fs::read_to_string(path)
+                .with_context(|| format!("reading body file {path}"))?;
+            parse_or_string(&text)
+        }
+        Some(raw) => parse_or_string(raw),
+    }
+}
+
+fn parse_or_string(s: &str) -> Result<Value> {
+    let trimmed = s.trim();
+    if trimmed.is_empty() {
+        return Ok(Value::Object(serde_json::Map::new()));
+    }
+    serde_json::from_str(trimmed)
+        .with_context(|| format!("body is not valid JSON: {}", truncate(trimmed, 80)))
+}
+
+fn truncate(s: &str, n: usize) -> String {
+    if s.len() <= n {
+        s.to_string()
+    } else {
+        format!("{}…", &s[..n])
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn parse_body_inline_json() {
+        let v = parse_body_arg(Some(r#"{"x":1}"#)).unwrap();
+        assert_eq!(v["x"], 1);
+    }
+
+    #[test]
+    fn parse_body_none_is_empty_object() {
+        let v = parse_body_arg(None).unwrap();
+        assert!(v.is_object());
+        assert_eq!(v.as_object().unwrap().len(), 0);
+    }
+
+    #[test]
+    fn parse_body_invalid_json_reports() {
+        let err = parse_body_arg(Some("not-json{")).unwrap_err();
+        let msg = format!("{err:#}");
+        assert!(msg.contains("not valid JSON"), "got: {msg}");
+    }
+}