docs: fix documentation-source mismatches across all doc files

- Go version: 1.19+/1.21+ → 1.25+ (matches go.mod)
- document/doc.go → document/document.go (actual filename)
- PluginSDK: 3 channels → 4 channels (add RegisterOutputChannel)
- InjectInput/InjectInterrupt: 3 params → 4 params (add eventType)
- RegisterChannel: document agentIO.Device interface requirement
- Architecture: remove non-existent snapshot/tokenizer dirs, add skill/meta
- Architecture: fix double internal/internal/sdk, fix Jaccard threshold
- Adapter: add http_get/http_post Lua VM built-ins
- Knowledge: 4-layer → 3-layer memory, CGO for go-sqlite3 not overlayfs
- Code structure tree: fix sdk/ and lua/adapters/ path consistency

docs/en/ADAPTER.md

@@ -82,6 +82,10 @@ return adapter
 
 `log(level, message)` — Output log (level: info/warn/error)
 
+`http_get(url)` — Perform HTTP GET request, returns response body as string
+
+`http_post(url, body)` — Perform HTTP POST request, returns response body as string
+
 ## Adapting Typical APIs
 
 | API | endpoint | auth method | Format differences |

docs/en/ARCHITECTURE.md

@@ -123,8 +123,8 @@ TF-IDF is the core algorithm running through all three memory layers, used in 4
 
 | Location | File | Purpose | Algorithm |
 |----------|------|---------|-----------|
-| Context Prune | `context.go:162` | Trim low-relevance context events | CosineSimilarity(queryVec, evt.Vector) |
-| DocStore Query | `document.go:205` | Recall related content from document memory | InvertedIndex + CosineSimilarity |
+| Context Prune | `context.go:161` | Trim low-relevance context events | CosineSimilarity(queryVec, evt.Vector) |
+| DocStore Query | `document.go:198` | Recall related content from document memory | InvertedIndex + CosineSimilarity |
 | Indexer Entity Search | `indexer.go:149` | Recall related entities from Graph | InvertedIndex + CosineSimilarity |
 | Entity Similarity Detection | `agent.go:2297` | Detect similar entities in Graph | Bigram Jaccard (>0.75 → consolidation) |
 
@@ -136,7 +136,7 @@ TF-IDF is the core algorithm running through all three memory layers, used in 4
 
 ### Document Layer
 
-`internal/memory/document/doc.go` — `Store`
+`internal/memory/document/document.go` — `Store`
 - Consume-on-read mode: deleted after `doc_query` retrieval
 - TF-IDF index with character bigram + inverted index
 
@@ -185,7 +185,7 @@ Heartbeat 30min:
                           selfInputCh → LLM decides merge/skip
 ```
 
-Entity conflict detection heuristic (bigram Jaccard > 0.5), routed through `selfInputCh` internal channel, LLM makes the final merge decision.
+Entity conflict detection heuristic (bigram Jaccard > 0.75), routed through `selfInputCh` internal channel, LLM makes the final merge decision.
 
 ## Knowledge Base
 
@@ -366,7 +366,7 @@ internal/
 │   ├── agentcli/          — PTY terminal
 │   ├── healthcheck/       — Health check
 │   └── pluginmgr/         — Plugin manager
-├── internal/sdk/          — PluginSDK definitions
+├── sdk/                   — PluginSDK definitions
 │   ├── plugin.go          — Plugin interface + PluginSDK
 │   ├── memory.go          — MemoryAPI
 │   ├── knowledge.go       — KnowledgeAPI
@@ -376,7 +376,7 @@ internal/
 │   ├── graph.go           — SQLite graph database
 │   ├── indexer.go         — Graph → vector index
 │   ├── vector/store.go    — TF-IDF vector engine
-│   ├── document/doc.go    — Document memory
+│   ├── document/document.go — Document memory
 │   ├── text/text.go       — Text logs
 │   └── pipeline/          — Distiller
 ├── knowledge/knowledge.go — Knowledge base
@@ -387,6 +387,8 @@ internal/
 ├── events/bus.go          — Event bus
 ├── tracker/               — OverlayFS change tracking
 ├── supervisor/            — Daemon management
-├── snapshot/              — Snapshots
-└── tokenizer/             — Chinese tokenization (jieba wrapper)
+├── skill/                 — Skill plugin management
+│   └── manager.go         — Skill loading/matching
+└── meta/                  — Meta information
+    └── meta.go            — Agent metadata
 ```

docs/en/OVERVIEW.md

@@ -37,7 +37,7 @@ Code is in the project root, implemented in Go.
 
 **Memory System** (`internal/memory/`):
 - **GraphDB** (`graph.go`) — SQLite, entities + relations tables, BFS traversal
-- **Document Store** (`document/doc.go`) — Temporary memory, JSON files + TF-IDF vector index, consume-on-read
+- **Document Store** (`document/document.go`) — Temporary memory, JSON files + TF-IDF vector index, consume-on-read
 - **Text Memory** (`text/text.go`) — Raw conversation logs, JSONL file rotation
 - **Social Store** (`social/social.go`) — Persona traits + relationship network, wraps GraphDB
 - **Memory Indexer** (`indexer.go`) — Auto-vectorizes GraphDB entities, recalls and injects into system prompt on user input
@@ -50,7 +50,7 @@ Code is in the project root, implemented in Go.
 **Plugin System** (`internal/plugin/`):
 - Built-in plugins: Go `init()` self-registration, compiled into kernel
 - External plugins: Go `-buildmode=plugin` compiled to `.so`/`.dll`, dynamically loaded via `plugin.Open`; also supports Lua script plugins
-- PluginSDK (`internal/sdk/`) defines three channels: RegisterTool / RegisterStage / Subscribe
+- PluginSDK (`internal/sdk/`) defines four channels: RegisterTool / RegisterStage / Subscribe / RegisterOutputChannel
 - 7 stage hooks: on_input → pre_action → post_action → before_toolcall → after_toolcall → before_output → after_output
 
 **LLM Provider** (`internal/agent/api/provider.go`):

docs/en/PLUGIN_DEV.md

@@ -265,10 +265,10 @@ s.Settings().GetPlugin("other_plugin", "some_key")
 
 ```go
 // Queued delivery (processed in order)
-s.InjectInput(source, channel string, payload map[string]interface{})
+s.InjectInput(source, channel, eventType string, payload map[string]interface{})
 
 // Interrupt delivery (can interrupt current LLM processing)
-s.InjectInterrupt(source, channel string, payload map[string]interface{})
+s.InjectInterrupt(source, channel, eventType string, payload map[string]interface{})
 
 // Shortcuts
 s.InjectText(source, channel, text string)
@@ -318,7 +318,15 @@ s.Publish(&events.Event{
 #### IO Channel Management (built-in plugins)
 
 ```go
-// Register a channel (bind device driver)
+// Register a channel (bind device driver), dev must implement the agentIO.Device interface:
+//   Name() string
+//   Type() DeviceType
+//   Description() string
+//   Tools() []ToolDef
+//   Execute(tool string, args map[string]interface{}) (interface{}, error)
+//   Start() error
+//   Stop() error
+//   OutputCapabilities() OutputCapability
 s.RegisterChannel("mydevice", deviceImpl)
 
 // Unregister a channel