docs(01-01): complete Mill Build and ZIO HTTP Server plan

Tasks completed: 3/3 - Create Mill build configuration - Create project structure and configuration - Create HTTP routes and Main entry point SUMMARY: .planning/phases/01-foundation/01-01-SUMMARY.md
2026-02-04 21:45:03 +01:00
parent 3757cf883b
commit bcf928da77
2 changed files with 168 additions and 11 deletions
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -10,28 +10,28 @@ See: .planning/PROJECT.md (updated 2026-02-04)
 ## Current Position

 Phase: 1 of 10 (Foundation)
-Plan: 0 of 3 in current phase
-Status: Ready to plan
-Last activity: 2026-02-04 - Roadmap created
+Plan: 1 of 3 in current phase
+Status: In progress
+Last activity: 2026-02-04 - Completed 01-01-PLAN.md

-Progress: [..........] 0%
+Progress: [#.........] 3% (1/29 plans)

 ## Performance Metrics

 **Velocity:**
- Total plans completed: 0
- Average duration: -
- Total execution time: 0 hours
+- Total plans completed: 1
+- Average duration: 39 min
+- Total execution time: 0.65 hours

 **By Phase:**

 | Phase | Plans | Total | Avg/Plan |
 |-------|-------|-------|----------|
-| - | - | - | - |
+| 01 | 1 | 39min | 39min |

 **Recent Trend:**
- Last 5 plans: -
- Trend: -
+- Last 5 plans: 01-01 (39min)
+- Trend: Baseline established

 *Updated after each plan completion*

@@ -45,6 +45,8 @@ Recent decisions affecting current work:
 - [Roadmap]: Comprehensive depth selected (10 phases, 29 plans)
 - [Roadmap]: Plugin System identified as architectural bottleneck - Phase 2
 - [Research]: Quill for database (compile-time SQL validation), ScalaTags + HTMX for frontend
+- [01-01]: Mill 1.1.1 required for Java 25 compatibility (ASM class file version 69)
+- [01-01]: Use _root_.config import to avoid zio.config shadowing

 ### Pending Todos

@@ -58,5 +60,5 @@ None yet.
 ## Session Continuity

 Last session: 2026-02-04
-Stopped at: Roadmap created with 10 phases and 43 requirements mapped
+Stopped at: Completed 01-01-PLAN.md (Mill Build and ZIO HTTP Server)
 Resume file: None
--- a/.planning/phases/01-foundation/01-01-SUMMARY.md
+++ b/.planning/phases/01-foundation/01-01-SUMMARY.md
@@ -0,0 +1,155 @@
+---
+phase: 01-foundation
+plan: 01
+subsystem: infra
+tags: [mill, zio, zio-http, scala3, hocon]
+
+# Dependency graph
+requires: []
+provides:
+  - Mill 1.1.1 build system with Scala 3.3.4
+  - ZIO HTTP server with health endpoint
+  - HOCON configuration with env overrides
+  - Application entry point pattern
+affects: [01-02, 01-03, all-phases]
+
+# Tech tracking
+tech-stack:
+  added:
+    - Mill 1.1.1
+    - Scala 3.3.4
+    - ZIO 2.1.14
+    - zio-http 3.0.1
+    - zio-config 4.0.2
+    - zio-config-typesafe 4.0.2
+    - zio-config-magnolia 4.0.2
+    - quill-jdbc-zio 4.8.5
+    - postgresql 42.7.4
+    - flyway-core 10.21.0
+  patterns:
+    - ZIOAppDefault with bootstrap ConfigProvider
+    - Routes composition via object aggregation
+    - HOCON config with env variable overrides
+
+key-files:
+  created:
+    - build.mill
+    - .mill-version
+    - .gitignore
+    - summercms/src/Main.scala
+    - summercms/src/api/Routes.scala
+    - summercms/src/api/HealthRoutes.scala
+    - summercms/src/config/AppConfig.scala
+    - summercms/resources/application.conf
+  modified: []
+
+key-decisions:
+  - "Mill 1.1.1 for Java 25 compatibility (0.12.x uses ASM that doesn't support class file version 69)"
+  - "Use mvnDeps and mvn interpolator (ivy deprecated in Mill 1.x)"
+  - "Use _root_.config import to avoid shadowing from zio.config"
+
+patterns-established:
+  - "Config pattern: Case classes with zio-config-magnolia derivation"
+  - "Route pattern: Object with routes val, composed in Routes.scala"
+  - "Main pattern: ZIOAppDefault with bootstrap for ConfigProvider"
+
+# Metrics
+duration: 39min
+completed: 2026-02-04
+---
+
+# Phase 01 Plan 01: Mill Build and ZIO HTTP Server Summary
+
+**Mill 1.1.1 build with Scala 3.3.4, ZIO HTTP server on port 8080, HOCON configuration with environment overrides**
+
+## Performance
+
+- **Duration:** 39 min
+- **Started:** 2026-02-04T20:04:29Z
+- **Completed:** 2026-02-04T20:44:00Z
+- **Tasks:** 3
+- **Files created:** 8
+
+## Accomplishments
+
+- Mill build system configured with all ZIO dependencies for Phase 1
+- Working HTTP server with /health endpoint returning "ok"
+- Configuration infrastructure using zio-config-magnolia for automatic derivation
+- ASCII sun banner displayed on server startup
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Create Mill build configuration** - `aedb45f` (feat)
+2. **Task 2: Create project structure and configuration** - `4278b84` (feat)
+3. **Task 3: Create HTTP routes and Main entry point** - `3757cf8` (feat)
+
+## Files Created
+
+- `build.mill` - Mill build configuration with Scala 3.3.4 and ZIO dependencies
+- `.mill-version` - Pins Mill version to 1.1.1
+- `.gitignore` - Excludes Mill artifacts, IDE files, OS files
+- `summercms/src/Main.scala` - ZIOAppDefault entry point with banner
+- `summercms/src/api/Routes.scala` - Route composition point
+- `summercms/src/api/HealthRoutes.scala` - GET /health endpoint
+- `summercms/src/config/AppConfig.scala` - ServerConfig, DatabaseConfig, AppConfig case classes
+- `summercms/resources/application.conf` - HOCON config with env overrides
+
+## Decisions Made
+
+1. **Mill 1.1.1 instead of 0.12.x** - System Java 25 (class file version 69) requires newer Mill with updated ASM library
+2. **mvnDeps instead of ivyDeps** - Mill 1.x renamed the dependency method
+3. **_root_.config import** - Avoids shadowing from `zio.*` importing `zio.config`
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 3 - Blocking] Updated Mill version for Java 25 compatibility**
+- **Found during:** Task 1
+- **Issue:** Mill 0.12.11 ASM library doesn't support Java 25 class file version 69
+- **Fix:** Downloaded Mill 1.1.1 launcher, updated .mill-version
+- **Files modified:** .mill-version, downloaded ./mill launcher
+- **Verification:** `./mill resolve _` succeeds
+- **Committed in:** aedb45f
+
+**2. [Rule 3 - Blocking] Added .gitignore for Mill artifacts**
+- **Found during:** Task 1
+- **Issue:** Build artifacts (out/, mill executable) would be committed without gitignore
+- **Fix:** Created .gitignore excluding Mill artifacts, IDE files, OS files
+- **Files modified:** .gitignore (new file)
+- **Verification:** `git status --short` no longer shows out/ or mill
+- **Committed in:** aedb45f
+
+**3. [Rule 1 - Bug] Fixed import shadowing with zio.config**
+- **Found during:** Task 3
+- **Issue:** `import zio.*` brings `zio.config` into scope, shadowing local `config` package
+- **Fix:** Used `_root_.config.{AppConfig as SummerConfig}` import
+- **Files modified:** summercms/src/Main.scala
+- **Verification:** `./mill summercms.compile` succeeds
+- **Committed in:** 3757cf8
+
+---
+
+**Total deviations:** 3 auto-fixed (2 blocking, 1 bug)
+**Impact on plan:** All auto-fixes necessary for correctness. No scope creep.
+
+## Issues Encountered
+
+- SLF4J warning about missing StaticLoggerBinder - benign, zio-http works with NOP logger. Will be resolved when adding proper logging in later phases.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+- Build system ready for database integration (Plan 01-02)
+- All ZIO dependencies already declared for database layer
+- Configuration pattern established for adding more settings
+- Ready to add /ready endpoint once database is connected
+
+---
+*Phase: 01-foundation*
+*Completed: 2026-02-04*