Omni/Deploy: add WorkingDirectory support and rename to deployer

- Add execWorkingDirectory field to Exec type in Manifest.hs
- Generate WorkingDirectory= in systemd unit files
- Allow add-service to update existing services
- Rename biz-deployer to deployer throughout
- Fix Caddy.hs and Systemd.hs tests for new Exec constructor

This fixes subagent stalls caused by Coder running direnv from wrong directory.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/Omni/Deploy/Deployer.hs b/Omni/Deploy/Deployer.hs
index 7e57b34..bfeb1a9 100644
--- a/Omni/Deploy/Deployer.hs
+++ b/Omni/Deploy/Deployer.hs
@@ -12,7 +12,7 @@
 -- Polls manifest from S3, compares to local state, pulls changed closures,
 -- generates systemd units, updates Caddy routes, and manages GC roots.
 --
--- : out biz-deployer
+-- : out deployer
 -- : dep aeson
 -- : dep amazonka
 -- : dep amazonka-core
@@ -61,7 +61,7 @@ import System.FilePath ((</>))
 import qualified System.Process as Process
 
 stateDir :: FilePath
-stateDir = "/var/lib/biz-deployer"
+stateDir = "/var/lib/deployer"
 
 stateFile :: FilePath
 stateFile = stateDir </> "state.json"
@@ -243,14 +243,14 @@ runDaemon intervalSeconds = do
 help :: Cli.Docopt
 help =
   [Cli.docopt|
-biz-deployer - Mini-PaaS deployment agent
+deployer - Mini-PaaS deployment agent
 
 Usage:
-  biz-deployer test
-  biz-deployer once
-  biz-deployer daemon [<interval>]
-  biz-deployer status
-  biz-deployer (-h | --help)
+  deployer test
+  deployer once
+  deployer daemon [<interval>]
+  deployer status
+  deployer (-h | --help)
 
 Commands:
   test      Run tests