2025.8.4 regression: _.path breaks mise use node

[glasser]

#5638 appears to break mise use node if you use _.path. When mise runs npm during the installation process, PATH doesn't seem to be set up properly for npm to find node.

Here's a reproduction using the Docker images.

2025.8.4:

❯ docker run --pull=always -it --rm --entrypoint bash jdxcode/mise:2025.8.4

2025.8.4: Pulling from jdxcode/mise
Digest: sha256:4140b87206ac28771b037e0befa4ef2d8e2010b2660ba5c5f57b817709810fa4
Status: Image is up to date for jdxcode/mise:2025.8.4
root@2b076b1ad612:/mise# echo '[env]' >>mise.toml
root@2b076b1ad612:/mise# echo '_.path = ["/foo"]' >>mise.toml
root@2b076b1ad612:/mise# mise use node@20.18.0
gpg: Signature made Thu Oct  3 17:56:36 2024 UTC
gpg:                using RSA key 8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600
mise WARN  Failed to read stderr for gpg --quiet --trust-model always --verify /mise/downloads/node/20.18.0/SHASUMS256.asc /mise/downloads/node/20.18.0/SHASUMS256.txt: stream did not contain valid UTF-8
/mise/installs/node/20.18.0/bin/npm: line 77: exec: node: not found
mise ERROR /mise/installs/node/20.18.0/bin/npm failed
/mise/installs/node/20.18.0/bin/npm: line 77: exec: node: not found
mise ERROR Failed to install tool: node@20.18.0

Individual error details:
  1. node@20.18.0:
     Error {
         msg: "failed to install core:node@20.18.0",
         source: ScriptFailed(
             "/mise/installs/node/20.18.0/bin/npm",
             Some(
                 ExitStatus(
                     unix_wait_status(
                         32512,
                     ),
                 ),
             ),
         ),
     }
mise ERROR Run with --verbose or MISE_VERBOSE=1 for more information

2025.8.3:

❯ docker run --pull=always -it --rm --entrypoint bash jdxcode/mise:2025.8.3

2025.8.3: Pulling from jdxcode/mise
6fbab1970a5a: Already exists 
e4b341315eac: Already exists 
1de51daaef20: Already exists 
2c8f8efa4105: Already exists 
2a5ced73697d: Already exists 
4233bedef434: Pull complete 
4bca9826d545: Pull complete 
4f4fb700ef54: Pull complete 
Digest: sha256:9d6f33ca1ccf8efcf5a3919b47c01dc43d3479957691e62c560bf2a052705e34
Status: Downloaded newer image for jdxcode/mise:2025.8.3
root@b24b26f8bf2c:/mise# echo '[env]' >>mise.toml
root@b24b26f8bf2c:/mise# echo '_.path = ["/foo"]' >>mise.toml
root@b24b26f8bf2c:/mise# mise use node@20.18.0
gpg: Signature made Thu Oct  3 17:56:36 2024 UTC
gpg:                using RSA key 8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600
mise WARN  Failed to read stderr for gpg --quiet --trust-model always --verify /mise/downloads/node/20.18.0/SHASUMS256.asc /mise/downloads/node/20.18.0/SHASUMS256.txt: stream did not contain valid UTF-8
mise node@20.18.0 ✓ installed                                                                                                                               mise /mise/mise.toml tools: node@20.18.0

[glasser]

Thanks @jdx, this is fixed by #5922 in 2025.8.5.