feat: add configurable base URL to anthropic, ollama, and openai prov...

The changes introduce a configurable base URL for each LLM provider,
allowing users to specify custom endpoints (e.g., for local or private
instances). This improves flexibility and enables deployment in
environments with custom API hosting.

Author: Sephyi

src/services/llm/anthropic.rs

@@ -13,11 +13,12 @@ use tokio_util::sync::CancellationToken;
 use crate::config::Config;
 use crate::error::{Error, Result};
 
-const BASE_URL: &str = "https://api.anthropic.com/v1";
+const DEFAULT_BASE_URL: &str = "https://api.anthropic.com/v1";
 const API_VERSION: &str = "2023-06-01";
 
 pub struct AnthropicProvider {
     client: Client,
+    base_url: String,
     model: String,
     api_key: String,
     temperature: f32,
@@ -59,9 +60,12 @@ RULES:
 2. The subject must be SPECIFIC - mention what was added/changed/fixed
 3. Output ONLY valid JSON
 4. Start subject with lowercase verb: add, fix, update, remove, refactor
+5. Include a body (1-3 sentences) for non-trivial changes explaining WHY the change was made. Use null only for trivial changes like typo fixes or renames.
 
-BAD: "describe what changed" or "update code"
-GOOD: "add rate limiting to api endpoints" or "fix null check in user service""#;
+BAD subject: "describe what changed" or "update code"
+GOOD subject: "add rate limiting to api endpoints" or "fix null check in user service"
+GOOD body: "The previous implementation used byte indexing which panics on multi-byte characters. Switch to char_indices for safe truncation."
+BAD body: "Updated the code to fix the bug" (too vague)"#;
 
 impl AnthropicProvider {
     pub fn new(config: &Config) -> Self {
@@ -72,6 +76,12 @@ impl AnthropicProvider {
 
         Self {
             client,
+            base_url: config
+                .anthropic_base_url
+                .clone()
+                .unwrap_or_else(|| DEFAULT_BASE_URL.to_string())
+                .trim_end_matches('/')
+                .to_string(),
             model: config.model.clone(),
             api_key: config.api_key.clone().unwrap_or_default(),
             temperature: config.temperature,
@@ -97,7 +107,7 @@ impl AnthropicProvider {
         token_tx: mpsc::Sender<String>,
         cancel: CancellationToken,
     ) -> Result<String> {
-        let url = format!("{BASE_URL}/messages");
+        let url = format!("{}/messages", self.base_url);
 
         let response = self
             .client

src/services/llm/ollama.rs

@@ -43,9 +43,12 @@ RULES:
 2. The subject must be SPECIFIC - mention what was added/changed/fixed
 3. Output ONLY valid JSON
 4. Start subject with lowercase verb: add, fix, update, remove, refactor
+5. Include a body (1-3 sentences) for non-trivial changes explaining WHY the change was made. Use null only for trivial changes like typo fixes or renames.
 
-BAD: "describe what changed" or "update code"
-GOOD: "add rate limiting to api endpoints" or "fix null check in user service""#;
+BAD subject: "describe what changed" or "update code"
+GOOD subject: "add rate limiting to api endpoints" or "fix null check in user service"
+GOOD body: "The previous implementation used byte indexing which panics on multi-byte characters. Switch to char_indices for safe truncation."
+BAD body: "Updated the code to fix the bug" (too vague)"#;
 
 #[derive(Deserialize)]
 struct GenerateResponse {

src/services/llm/openai.rs

@@ -62,9 +62,12 @@ RULES:
 2. The subject must be SPECIFIC - mention what was added/changed/fixed
 3. Output ONLY valid JSON
 4. Start subject with lowercase verb: add, fix, update, remove, refactor
+5. Include a body (1-3 sentences) for non-trivial changes explaining WHY the change was made. Use null only for trivial changes like typo fixes or renames.
 
-BAD: "describe what changed" or "update code"
-GOOD: "add rate limiting to api endpoints" or "fix null check in user service""#;
+BAD subject: "describe what changed" or "update code"
+GOOD subject: "add rate limiting to api endpoints" or "fix null check in user service"
+GOOD body: "The previous implementation used byte indexing which panics on multi-byte characters. Switch to char_indices for safe truncation."
+BAD body: "Updated the code to fix the bug" (too vague)"#;
 
 impl OpenAiProvider {
     pub fn new(config: &Config) -> Self {