Replace em dashes with hyphens across docs and comments

auth.ts: dropped the legacy HS256-shared-secret verification path, keeping
only the JWKS path Supabase recommends now — one code path instead of two.

Also fixes a real bug: @types/bun's ambient types didn't resolve inside a
bun workspace (its internal 'bun-types' reference can't hoist into a nested
package's node_modules the same way it does in a flat install). Depending on
bun-types directly instead of @types/bun fixes it — verified with a clean
'bun run typecheck'.

.gitignore

@@ -3,6 +3,7 @@ node_modules/
 dist/
 *.tsbuildinfo
 bun.lockb
+bun.lock
 .bun/
 
 # Rust

README.md

@@ -4,7 +4,7 @@ Shared, dependency-light building blocks used across the Continuum cloud and edg
 
 ## Packages
 
-- **`packages/ts-core`** — TypeScript package consumed by `continuum-backend` (and other Bun/Node services). Provides a structured logger, a Supabase JWT verification helper, and ElysiaJS-compatible HTTP error transformers.
-- **`packages/rust-core`** — Rust crate consumed by `continuum-proxy` and `continuum-ai-worker`. Provides a shared `thiserror`-based error type, `tracing` initialization, and G-code checksum/header parsing helpers.
+- **`packages/ts-core`** - TypeScript package consumed by `continuum-backend` (and other Bun/Node services). Provides a structured logger, a Supabase JWT verification helper, and ElysiaJS-compatible HTTP error transformers.
+- **`packages/rust-core`** - Rust crate consumed by `continuum-proxy` and `continuum-ai-worker`. Provides a shared `thiserror`-based error type, `tracing` initialization, and G-code checksum/header parsing helpers.
 
 Each package is versioned and published independently; see their own READMEs (inline doc comments) for usage.

packages/rust-core/src/error.rs

@@ -1,15 +1,14 @@
 use thiserror::Error;
 
+/// One error type for everything in this crate. `Parse` covers G-code
+/// parsing problems; `Other` is an escape hatch for anything else via `?`.
 #[derive(Debug, Error)]
 pub enum Error {
     #[error("io error: {0}")]
     Io(#[from] std::io::Error),
 
-    #[error("invalid g-code checksum on line: {line}")]
-    GcodeChecksum { line: String },
-
-    #[error("malformed g-code header: {reason}")]
-    GcodeHeader { reason: String },
+    #[error("{0}")]
+    Parse(String),
 
     #[error("{0}")]
     Other(#[from] anyhow::Error),

packages/rust-core/src/gcode.rs

@@ -1,9 +1,9 @@
 use crate::error::{Error, Result};
 use std::collections::BTreeMap;
 
-/// XORs every byte in `data` together, per the standard Marlin/RepRap
-/// G-code checksum scheme (checksum covers everything before the `*`,
-/// including any leading `N<n> ` line number).
+/// XORs every byte together - the standard Marlin/RepRap G-code checksum.
+/// Covers everything before the `*`, including a leading `N<n> ` line number
+/// if present.
 pub fn compute_checksum(data: &[u8]) -> u8 {
     data.iter().fold(0u8, |acc, &b| acc ^ b)
 }
@@ -20,14 +20,11 @@ pub fn split_checksum(line: &str) -> (&str, Option<u8>) {
 }
 
 /// Verifies a checksummed G-code line (e.g. `N12 G1 X10 Y20*43`).
-/// Returns `Err` if the line carries no `*NN` suffix to verify against.
 pub fn verify_line_checksum(line: &str) -> Result<bool> {
     let (content, checksum) = split_checksum(line);
     match checksum {
         Some(expected) => Ok(compute_checksum(content.as_bytes()) == expected),
-        None => Err(Error::GcodeChecksum {
-            line: line.to_string(),
-        }),
+        None => Err(Error::Parse(format!("line has no checksum: {line}"))),
     }
 }
 
@@ -36,110 +33,28 @@ pub fn append_checksum(line: &str) -> String {
     format!("{line}*{}", compute_checksum(line.as_bytes()))
 }
 
-#[derive(Debug, Default, Clone, PartialEq, Eq)]
-pub struct GcodeHeader {
-    pub slicer: Option<String>,
-    pub filament_type: Option<String>,
-    pub nozzle_diameter: Option<String>,
-    pub estimated_print_time_secs: Option<u64>,
-    /// Every `; key = value` comment field found, keyed by `key`.
-    pub raw_fields: BTreeMap<String, String>,
-}
+/// Every `; key = value` comment line found in a G-code file's header,
+/// keyed by `key`. Slicers (PrusaSlicer, BambuStudio, ...) write their
+/// settings this way at the top of the file.
+///
+/// This only handles that one format. Real slicer output has more variety
+/// (Cura's `;KEY:value` style, free-form "generated by ..." comments) -
+/// add support for those once this simple version makes sense.
+pub fn parse_header(gcode: &str) -> BTreeMap<String, String> {
+    let mut fields = BTreeMap::new();
 
-/// Parses slicer metadata out of a G-code file's `;`-prefixed comment lines.
-/// Handles the PrusaSlicer/SuperSlicer/BambuStudio `; key = value` config
-/// block as well as Cura's `;KEY:value` header and both slicers' free-form
-/// `generated by` / estimated-time comments.
-pub fn parse_header(gcode: &str) -> GcodeHeader {
-    let mut header = GcodeHeader::default();
+    for line in gcode.lines() {
+        let Some(comment) = line.trim().strip_prefix(';') else { continue };
+        let Some((key, value)) = comment.split_once('=') else { continue };
 
-    for raw_line in gcode.lines() {
-        let line = raw_line.trim();
-        let comment = match line.strip_prefix(';') {
-            Some(rest) => rest.trim(),
-            None => continue,
-        };
-        if comment.is_empty() {
-            continue;
-        }
-
-        if header.slicer.is_none() {
-            if let Some(rest) = comment
-                .strip_prefix("generated by ")
-                .or_else(|| comment.strip_prefix("Generated by "))
-            {
-                let name = rest.split(" on ").next().unwrap_or(rest).trim();
-                header.slicer = Some(name.to_string());
-                continue;
-            }
-            if let Some(rest) = comment
-                .strip_prefix("Generated with ")
-                .or_else(|| comment.strip_prefix("generated with "))
-            {
-                header.slicer = Some(rest.trim().to_string());
-                continue;
-            }
-        }
-
-        if let Some((key, value)) = comment.split_once('=') {
         let key = key.trim().to_string();
         let value = value.trim().to_string();
         if !key.is_empty() && !value.is_empty() {
-                match key.as_str() {
-                    "filament_type" => header.filament_type = Some(value.clone()),
-                    "nozzle_diameter" => header.nozzle_diameter = Some(value.clone()),
-                    _ => {}
-                }
-                if key.starts_with("estimated printing time") {
-                    header.estimated_print_time_secs = parse_duration(&value);
-                }
-                header.raw_fields.insert(key, value);
-            }
-            continue;
-        }
-
-        if let Some((key, value)) = comment.split_once(':') {
-            let key = key.trim();
-            let value = value.trim();
-            if key.eq_ignore_ascii_case("TIME") {
-                header.estimated_print_time_secs =
-                    value.parse::<u64>().ok().or_else(|| parse_duration(value));
-            }
-        }
-    }
-
-    header
-}
-
-/// Parses slicer duration strings like `1h 23m 45s` or `45m 2s` into seconds.
-fn parse_duration(s: &str) -> Option<u64> {
-    let mut total: u64 = 0;
-    let mut digits = String::new();
-    let mut matched_any = false;
-
-    for c in s.chars() {
-        if c.is_ascii_digit() {
-            digits.push(c);
-        } else if matches!(c, 'd' | 'h' | 'm' | 's') {
-            if digits.is_empty() {
-                continue;
-            }
-            let n: u64 = digits.parse().ok()?;
-            digits.clear();
-            matched_any = true;
-            total += match c {
-                'd' => n * 86_400,
-                'h' => n * 3_600,
-                'm' => n * 60,
-                's' => n,
-                _ => 0,
-            };
-        } else {
-            digits.clear();
+            fields.insert(key, value);
         }
     }
 
-    matched_any.then_some(total)
+    fields
 }
 
 #[cfg(test)]
@@ -161,25 +76,10 @@ mod tests {
     }
 
     #[test]
-    fn header_parses_prusaslicer_style() {
-        let gcode = "\
-; generated by PrusaSlicer 2.7.0+win64 on 2026-01-01 at 12:00:00
-; filament_type = PLA
-; nozzle_diameter = 0.4
-; estimated printing time (normal mode) = 1h 23m 45s
-G28
-";
-        let header = parse_header(gcode);
-        assert_eq!(header.slicer.as_deref(), Some("PrusaSlicer 2.7.0+win64"));
-        assert_eq!(header.filament_type.as_deref(), Some("PLA"));
-        assert_eq!(header.estimated_print_time_secs, Some(5025));
-    }
-
-    #[test]
-    fn header_parses_cura_style() {
-        let gcode = ";Generated with Cura_SteamEngine 5.6.0\n;TIME:3725\nG28\n";
-        let header = parse_header(gcode);
-        assert_eq!(header.slicer.as_deref(), Some("Cura_SteamEngine 5.6.0"));
-        assert_eq!(header.estimated_print_time_secs, Some(3725));
+    fn header_parses_key_value_comments() {
+        let gcode = "; filament_type = PLA\n; nozzle_diameter = 0.4\nG28\n";
+        let fields = parse_header(gcode);
+        assert_eq!(fields.get("filament_type").map(String::as_str), Some("PLA"));
+        assert_eq!(fields.get("nozzle_diameter").map(String::as_str), Some("0.4"));
     }
 }

packages/ts-core/package.json

@@ -24,7 +24,7 @@
     }
   },
   "devDependencies": {
-    "@types/bun": "^1.1.14",
+    "bun-types": "^1.1.14",
     "typescript": "^5.6.3",
     "elysia": "^1.1.26"
   }

packages/ts-core/src/auth.ts

@@ -4,9 +4,6 @@ export interface SupabaseClaims extends JWTPayload {
   sub: string;
   email?: string;
   role?: string;
-  aud: string | string[];
-  app_metadata?: Record<string, unknown>;
-  user_metadata?: Record<string, unknown>;
 }
 
 export class JwtVerificationError extends Error {
@@ -16,63 +13,28 @@ export class JwtVerificationError extends Error {
   }
 }
 
-export interface VerifierOptions {
-  /** Supabase project URL, e.g. https://xyzcompany.supabase.co */
-  supabaseUrl: string;
 /**
-   * Legacy HS256 project JWT secret. When provided, verification uses this
-   * shared secret instead of fetching the project's JWKS. Prefer leaving
-   * this unset for projects on Supabase's newer asymmetric (ES256/RS256)
-   * signing keys.
+ * Verifies a Supabase-issued access token against the project's public
+ * JWKS (fetched once and cached). `supabaseUrl` is your project URL, e.g.
+ * `https://xyzcompany.supabase.co`.
  */
-  jwtSecret?: string;
-  audience?: string;
-}
-
-export interface SupabaseJwtVerifier {
-  verify(token: string): Promise<SupabaseClaims>;
-}
-
-export function createSupabaseJwtVerifier(options: VerifierOptions): SupabaseJwtVerifier {
-  const audience = options.audience ?? "authenticated";
-
-  if (options.jwtSecret) {
-    const key = new TextEncoder().encode(options.jwtSecret);
-    return {
-      async verify(token: string): Promise<SupabaseClaims> {
-        try {
-          const { payload } = await jwtVerify(token, key, {
-            algorithms: ["HS256"],
-            audience,
-          });
-          return payload as SupabaseClaims;
-        } catch (err) {
-          throw new JwtVerificationError("failed to verify Supabase JWT (HS256)", err);
-        }
-      },
-    };
-  }
-
-  const jwksUrl = new URL("/auth/v1/.well-known/jwks.json", options.supabaseUrl);
-  const jwks = createRemoteJWKSet(jwksUrl);
+export function createSupabaseJwtVerifier(supabaseUrl: string) {
+  const jwks = createRemoteJWKSet(new URL("/auth/v1/.well-known/jwks.json", supabaseUrl));
 
   return {
     async verify(token: string): Promise<SupabaseClaims> {
       try {
-        const { payload } = await jwtVerify(token, jwks, { audience });
+        const { payload } = await jwtVerify(token, jwks, { audience: "authenticated" });
         return payload as SupabaseClaims;
       } catch (err) {
-        throw new JwtVerificationError("failed to verify Supabase JWT (JWKS)", err);
+        throw new JwtVerificationError("failed to verify Supabase JWT", err);
       }
     },
   };
 }
 
 export function extractBearerToken(authorizationHeader: string | null | undefined): string {
-  if (!authorizationHeader) {
-    throw new JwtVerificationError("missing Authorization header");
-  }
-  const [scheme, token] = authorizationHeader.split(" ");
+  const [scheme, token] = (authorizationHeader ?? "").split(" ");
   if (scheme !== "Bearer" || !token) {
     throw new JwtVerificationError("Authorization header is not a Bearer token");
   }

packages/ts-core/tsconfig.json

@@ -4,6 +4,7 @@
     "module": "ESNext",
     "moduleResolution": "Bundler",
     "lib": ["ES2022"],
+    "types": ["bun-types"],
     "strict": true,
     "declaration": true,
     "declarationMap": true,