fix: cap distiller startup scan and switch to formal SDK module dependency

- replace vendored third_party/homeagent-sdk with formal module dependency
- keep canonical SDK via go.mod pinned commit
- optimize distiller startup loading to stream recent raw records only
- parse timestamps correctly and cap startup load to 5000 records
- remove quadratic string building in raw record parsing
- restore fast startup while preserving memory pipeline

third_party/homeagent-sdk/hack/plugin-dev/templates/Makefile.tmpl

@@ -1,17 +0,0 @@
-# Build external Go plugin for HomeAgent
-# Usage: make          # build plugin.so
-#        make clean    # remove plugin.so
-
-PLUGIN_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
-SDK_ROOT := $(realpath $(PLUGIN_DIR)../..)
-PLUGIN_NAME := $(notdir $(realpath $(PLUGIN_DIR)))
-
-.PHONY: all clean
-
-all: plugin.so
-
-plugin.so:
-	cd $(SDK_ROOT) && go build -buildmode=plugin -o $(PLUGIN_DIR)plugin.so $(PLUGIN_DIR)
-
-clean:
-	rm -f $(PLUGIN_DIR)plugin.so

third_party/homeagent-sdk/hack/plugin-dev/templates/gitignore.tmpl

@@ -1,2 +0,0 @@
-plugin.so
-*.hmap

third_party/homeagent-sdk/hack/plugin-dev/templates/plugin.go.tmpl

@@ -1,54 +0,0 @@
-package main
-
-import (
-	"log"
-
-	"gitcode.com/JianFeeeee/homeagent-sdk/sdk"
-)
-
-type Plugin struct {
-	name string
-	sdk  *sdk.PluginSDK
-}
-
-func NewPlugin(name string, config map[string]interface{}) (sdk.Plugin, error) {
-	return &Plugin{
-		name: name,
-	}, nil
-}
-
-func (p *Plugin) Name() string { return p.name }
-
-func (p *Plugin) Start(s *sdk.PluginSDK) error {
-	p.sdk = s
-
-	tp := p.name + "_"
-
-	s.RegisterTool(tp+"example", sdk.ToolDef{
-		Name:        tp + "example",
-		Description: "示例工具 - 请替换为实现",
-		Parameters: map[string]interface{}{
-			"type": "object",
-			"properties": map[string]interface{}{
-				"input": map[string]interface{}{"type": "string", "description": "输入参数"},
-			},
-			"required": []string{"input"},
-		},
-	}, p.handleExample)
-
-	log.Printf("[%s] plugin started", p.name)
-	return nil
-}
-
-func (p *Plugin) Stop() error {
-	return nil
-}
-
-func (p *Plugin) handleExample(args map[string]interface{}) (interface{}, error) {
-	input, _ := args["input"].(string)
-	return map[string]interface{}{
-		"echo": input,
-	}, nil
-}
-
-func main() {}

third_party/homeagent-sdk/hack/plugin-dev/templates/plugin.json.tmpl

@@ -1,10 +0,0 @@
-{
-  "name": "{{.Name}}",
-  "version": "{{.Version}}",
-  "description": "{{.Description}}",
-  "author": "{{.Author}}",
-  "license": "MIT",
-  "entry": "plugin.so",
-  "min_version": "1.0.0",
-  "tags": ["{{.Name}}"]
-}