webui + httpgw fixes, tilde expansion, build targets

- Update core, httpgw, webui submodules
- Add httpgw and webui to mk all rule

core

@@ -1 +1 @@
-Subproject commit 07d362767d955e733f916283479ded4a1ef7c0bc
+Subproject commit a4bb7608c7f6414168cfaaf3d4358d01cdc18a5a

httpgw

@@ -1 +1 @@
-Subproject commit ec092055fe15fd3a48daa8ee3dd2e58215814de7
+Subproject commit 830849e193be3f63a785d4e511c0ae94c81e2130

mkfile

@@ -8,7 +8,7 @@
 #   mk httpgw     # build only httpgw
 #   mk all        # build everything (default)
 
-all:V: core tui 9p data scripts
+all:V: core tui 9p httpgw webui data scripts
 
 core:V:
 	echo === Building ollie-core ===
@@ -26,6 +26,10 @@ httpgw:V:
 	echo === Building ollie-httpgw ===
 	cd httpgw && mk
 
+webui:V:
+	echo === Building ollie-webui ===
+	cd webui && npm run build
+
 data:V:
 	echo === Installing data ===
 	mkdir -p $HOME/.config/ollie/agents
@@ -65,6 +69,7 @@ help:V:
 	echo '  tui     - Build terminal UI'
 	echo '  9p      - Build 9p filesystem server'
 	echo '  httpgw  - Build HTTP gateway'
+	echo '  webui   - Build web UI'
 	echo '  data    - Install agents, prompts, skills, and tools to ~/.config/ollie/'
 	echo '  scripts - Install shell scripts to ~/.config/ollie/scripts/'
 	echo ''

webui

@@ -1 +1 @@
-Subproject commit 251554082206d4e52c6652bd64237d685b0c4469
+Subproject commit a199572a7400da62a28fb7391619c37c789ad5cc