feat: Implement new filter syntax with JSON options for all filter plugins

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/filter_plugin/skip.rs

@@ -12,6 +12,27 @@ impl SkipBytesFilter {
             remaining: count,
         }
     }
+
+    pub fn create(options: Option<serde_json::Value>) -> Result<Box<dyn FilterPlugin>> {
+        let options = options.ok_or_else(|| {
+            std::io::Error::new(
+                std::io::ErrorKind::InvalidInput,
+                "skip_bytes filter requires options"
+            )
+        })?;
+        
+        let count = options.get("n")
+            .and_then(|v| v.as_u64())
+            .map(|n| n as usize)
+            .ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "skip_bytes filter requires 'n' parameter"
+                )
+            })?;
+            
+        Ok(Box::new(Self::new(count)))
+    }
 }
 
 impl FilterPlugin for SkipBytesFilter {
@@ -45,6 +66,27 @@ impl SkipLinesFilter {
             remaining: count,
         }
     }
+
+    pub fn create(options: Option<serde_json::Value>) -> Result<Box<dyn FilterPlugin>> {
+        let options = options.ok_or_else(|| {
+            std::io::Error::new(
+                std::io::ErrorKind::InvalidInput,
+                "skip_lines filter requires options"
+            )
+        })?;
+        
+        let count = options.get("n")
+            .and_then(|v| v.as_u64())
+            .map(|n| n as usize)
+            .ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "skip_lines filter requires 'n' parameter"
+                )
+            })?;
+            
+        Ok(Box::new(Self::new(count)))
+    }
 }
 
 impl FilterPlugin for SkipLinesFilter {

src/filter_plugin/tail.rs

@@ -15,6 +15,27 @@ impl TailBytesFilter {
             count,
         }
     }
+
+    pub fn create(options: Option<serde_json::Value>) -> Result<Box<dyn FilterPlugin>> {
+        let options = options.ok_or_else(|| {
+            std::io::Error::new(
+                std::io::ErrorKind::InvalidInput,
+                "tail_bytes filter requires options"
+            )
+        })?;
+        
+        let count = options.get("n")
+            .and_then(|v| v.as_u64())
+            .map(|n| n as usize)
+            .ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "tail_bytes filter requires 'n' parameter"
+                )
+            })?;
+            
+        Ok(Box::new(Self::new(count)))
+    }
 }
 
 impl FilterPlugin for TailBytesFilter {
@@ -54,6 +75,27 @@ impl TailLinesFilter {
             count,
         }
     }
+
+    pub fn create(options: Option<serde_json::Value>) -> Result<Box<dyn FilterPlugin>> {
+        let options = options.ok_or_else(|| {
+            std::io::Error::new(
+                std::io::ErrorKind::InvalidInput,
+                "tail_lines filter requires options"
+            )
+        })?;
+        
+        let count = options.get("n")
+            .and_then(|v| v.as_u64())
+            .map(|n| n as usize)
+            .ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "tail_lines filter requires 'n' parameter"
+                )
+            })?;
+            
+        Ok(Box::new(Self::new(count)))
+    }
 }
 
 impl FilterPlugin for TailLinesFilter {