docs(agents): update hook counts 44→46, add hashline-edit documentation

- Update root AGENTS.md: hook count 44→46, commit fcb90d92, generated 2026-02-24
- Update src/AGENTS.md: core hooks 35→37, session hooks 21→23
- Update src/hooks/AGENTS.md: 46 hooks total, add modelFallback/noSisyphusGpt/noHephaestusNonGpt/runtimeFallback, jsonErrorRecovery moved to tool-guard (tier 2)
- Create src/tools/hashline-edit/AGENTS.md (93 lines): documents three-op model, LINE#ID format, execution pipeline
- Refresh timestamps: 2026-02-21→2026-02-24 on 28 files
- Update plugin/AGENTS.md hook composition counts

🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/plugin/AGENTS.md

@@ -1,10 +1,10 @@
 # src/plugin/ — 8 OpenCode Hook Handlers + Hook Composition
 
-**Generated:** 2026-02-21
+**Generated:** 2026-02-24
 
 ## OVERVIEW
 
-Core glue layer. 20 source files assembling the 8 OpenCode hook handlers and composing 44 hooks into the PluginInterface. Every handler file corresponds to one OpenCode hook type.
+Core glue layer. 20 source files assembling the 8 OpenCode hook handlers and composing 46 hooks into the PluginInterface. Every handler file corresponds to one OpenCode hook type.
 
 ## HANDLER FILES
 
@@ -25,10 +25,10 @@ Core glue layer. 20 source files assembling the 8 OpenCode hook handlers and com
 |------|------|-------|
 | `create-session-hooks.ts` | Session | 21 |
 | `create-tool-guard-hooks.ts` | Tool Guard | 10 |
-| `create-transform-hooks.ts` | Transform | 4 |
-| `create-continuation-hooks.ts` | Continuation | 7 |
+| `create-session-hooks.ts` | Session | 23 |
+| `create-tool-guard-hooks.ts` | Tool Guard | 10 |
 | `create-skill-hooks.ts` | Skill | 2 |
-| `create-core-hooks.ts` | Aggregator | Session + Guard + Transform = 35 |
+| `create-core-hooks.ts` | Aggregator | Session + Guard + Transform = 37 |
 
 ## SUPPORT FILES