update submodules: 9p create/writable skills, core tools path

- 9p: add Tcreate for /t and /sk, writable skill files, tools path
- core: default tools path to ~/.config/ollie/tools
- docs: update ARCHITECTURE.md and IDEAS.md for new path

9p

@@ -1 +1 @@
-Subproject commit 173ab613f53cfff97d1aa9a3898119c0c2406dd3
+Subproject commit 7b3e159ac01464df169c0182d77540bf069b7028

core

@@ -1 +1 @@
-Subproject commit 6b8cd7afeedd649e6ee0cc5506cc9c482019d3b3
+Subproject commit a1acf0d936912188c3aed295a02849d8ec255bdb

doc/ARCHITECTURE.md

@@ -89,7 +89,7 @@ File operations go through `execute_code` using standard shell tools (`cat`, `gr
 
 Tool definitions live in `pkg/tools/builtin.go` to avoid import cycles — the subpackages import `pkg/tools`, so `pkg/tools` cannot import them back.
 
-`OLLIE_TOOLS_PATH` defaults to `~/.local/share/ollie/tools`. The directory can be a symlink or a mountpoint — `execute_tool` treats it as an ordinary filesystem path.
+`OLLIE_TOOLS_PATH` defaults to `~/.config/ollie/tools`. The directory can be a symlink or a mountpoint — `execute_tool` treats it as an ordinary filesystem path.
 
 ## Planning and Task Persistence
 

doc/IDEAS.md

@@ -102,7 +102,7 @@ A session can spawn ephemeral child sessions to handle a focused task, then tear
 Input  (stdin):  JSON array of {"task": str, "agent": str, "context": str}
 Output (stdout): JSON array of {"agent": str, "reply": str}
 
-Install in ~/.local/share/ollie/tools/ to make available via execute_tool.
+Install in ~/.config/ollie/tools/ to make available via execute_tool.
 """
 
 import json, os, sys, threading, time