tools: move builtins to tools/builtin/

Prepares tools/ as the umbrella for all tool implementations:
- tools/builtin/ — in-process handlers (shell, reasoning, tool/skill registry)
- tools/lsp/ — (next) Go LSP tools with shared client library

Package rename: ollie/tools → ollie/tools/builtin

fs/session/create.go

@@ -10,7 +10,7 @@ import (
 	"ollie/backend"
 	coresession "ollie/session"
 	"ollie/toolsrv"
-	"ollie/tools"
+	"ollie/tools/builtin"
 	"ollie/paths"
 	"ollie/prompts"
 )
@@ -128,7 +128,7 @@ func Create(rs *rootState, args []string) (string, error) {
 		}
 		if rs.cfg.SkillsRegistry != nil {
 			execOpts = append(execOpts, toolsrv.WithSkillsRegistry(rs.cfg.SkillsRegistry))
-			execOpts = append(execOpts, toolsrv.WithBuiltins(tools.Builtins()))
+			execOpts = append(execOpts, toolsrv.WithBuiltins(builtin.Builtins()))
 		}
 		var newToolServer func() toolsrv.Runner
 		var remoteEnv []string

fs/session/persist.go

@@ -13,7 +13,7 @@ import (
 	"ollie/backend"
 	coresession "ollie/session"
 	"ollie/toolsrv"
-	"ollie/tools"
+	"ollie/tools/builtin"
 	"ollie/prompts"
 )
 
@@ -268,7 +268,7 @@ func restoreSession(rs *rootState, ps *agent.PersistedAgent) error {
 		}
 		if rs.cfg.SkillsRegistry != nil {
 			execOpts = append(execOpts, toolsrv.WithSkillsRegistry(rs.cfg.SkillsRegistry))
-			execOpts = append(execOpts, toolsrv.WithBuiltins(tools.Builtins()))
+			execOpts = append(execOpts, toolsrv.WithBuiltins(builtin.Builtins()))
 		}
 		newToolServer = func() toolsrv.Runner {
 			srv, _ := toolsrv.Dial(rs.cfg.Ctx, toolsrv.LocalAddr(cwd), execOpts...)

justfile

@@ -26,7 +26,7 @@ build-kf5: core ninep acme kde-kf5
 
 core:
     @echo === Building ollie-core ===
-    go build ./agent/... ./backend/... ./detach/... ./elevate/... ./env/... ./fs/session/... ./log/... ./mount/... ./paths/... ./prompts/... ./sandbox/... ./session/... ./skills/... ./tools/... ./toolsrv/... ./dbus/...
+    go build ./agent/... ./backend/... ./detach/... ./elevate/... ./env/... ./fs/session/... ./log/... ./mount/... ./paths/... ./prompts/... ./sandbox/... ./session/... ./skills/... ./tools/builtin/... ./toolsrv/... ./dbus/...
 
 ninep:
     @echo === Building ollie-9p ===
@@ -222,7 +222,7 @@ test: test-core test-9p
 
 test-core:
     @echo === Testing ollie-core ===
-    go test ./agent/... ./backend/... ./detach/... ./elevate/... ./env/... ./log/... ./paths/... ./sandbox/... ./session/... ./skills/... ./tools/... ./toolsrv/... ./dbus/... ./prompts/...
+    go test ./agent/... ./backend/... ./detach/... ./elevate/... ./env/... ./log/... ./paths/... ./sandbox/... ./session/... ./skills/... ./tools/builtin/... ./toolsrv/... ./dbus/... ./prompts/...
 
 test-9p:
     @echo === Testing ollie-9p ===

tools/builtin/builtins.go

@@ -1,6 +1,6 @@
 // Package tools provides the built-in tool handlers for the toolsrv server.
 // Each file in this package is one tool. Builtins() is the single registry.
-package tools
+package builtin
 
 import "ollie/toolsrv"
 

tools/builtin/reasoning.go

@@ -1,4 +1,4 @@
-package tools
+package builtin
 
 import (
 	"context"

tools/builtin/shell.go

@@ -1,4 +1,4 @@
-package tools
+package builtin
 
 import (
 	"context"

tools/builtin/skill.go

@@ -1,4 +1,4 @@
-package tools
+package builtin
 
 import (
 	"context"

tools/builtin/tool.go

@@ -1,4 +1,4 @@
-package tools
+package builtin
 
 import (
 	"context"