Full test suite is now the mandatory final validation; fix everything it surfaced

- Policy: every change ends with make test (all tiers, all tests) green; docs and agent guardrails updated accordingly
- schema.py: ensure the full filtered/indexed column set of instances via get_table (ingress_slug, ports_json, container_gateway, slug, status, ...) so a partial first insert can never break the ingress proxy
- docs_api: award body param location body -> json; gateway endpoints documented public -> user to match enforced auth
- tests: missing get_table import (trash restore), audit read as admin (award), deterministic online-roster and leaderboard-cache handling, container visibility updated to the primary-admin-only rule, scoped AI usage heading selector past the hidden Tools nav links

.claude/agents/test-maintainer.md

@@ -30,7 +30,7 @@ All application code is under `devplacepy/`: `devplacepy/routers/`, `devplacepy/
 - **F. Verify your own work.** After writing a test module, validate it ONLY by a clean import (`python -c "import tests..."` or `python -m py_compile`).
 
 ## Mode
-Default to **REPORT** mode: record coverage gaps and pattern violations, do NOT write files. Apply **FIX** mode only when the invocation explicitly asks you to fix; then write the missing integration test following the required patterns. **HARD GUARDRAIL: write tests but NEVER run the suite, not the full suite and not a single file.** Validate only by a clean import of the new test module. Never perform any git write operation.
+Default to **REPORT** mode: record coverage gaps and pattern violations, do NOT write files. Apply **FIX** mode only when the invocation explicitly asks you to fix; then write the missing integration test following the required patterns. **HARD GUARDRAIL: write tests but NEVER launch the suite yourself, not the full suite and not a single file - the serial single-process suite cannot run concurrently with other agents, so the orchestrating session runs `make test` (all tests) after your work.** Validate only by a clean import of the new test module. Never perform any git write operation.
 
 ## Obey the rules you enforce
 No comments or docstrings in source you author; no em-dashes (use a hyphen); keep `retoor <retoor@molodetz.nl>` as the first line of any file you create.

.claude/commands/test.md

@@ -1,5 +1,5 @@
 ---
-description: Run DevPlace tests - the sanctioned explicit-ask path. Run a tier, a file, or a single test with the correct flags. The agents never run tests themselves; this command is how you ask.
+description: Run DevPlace tests. Run a tier, a file, or a single test with the correct flags. Subagents never run tests themselves (the serial suite cannot run concurrently); the orchestrating session always runs the full suite as the final validation of every change.
 argument-hint: [unit|api|e2e|all|<path::test_name>]
 allowed-tools: Bash(make test*), Bash(python -m pytest *), Read
 ---
@@ -12,6 +12,6 @@ Mapping:
 - `all` or empty -> `make test`
 - a path like `tests/api/posts/create.py::test_x` -> `python -m pytest <that> -v --tb=line -x`
 
-Tests run serially on port 10501 with a tempfile SQLite DB and `DEVPLACE_DISABLE_SERVICES=1`. This command is the one sanctioned way to run them (the subagents and workflows never do).
+Tests run serially on port 10501 with a tempfile SQLite DB and `DEVPLACE_DISABLE_SERVICES=1`. Subagents and workflows never launch tests (the serial single-process suite cannot run concurrently); the orchestrating session runs the full suite (`make test`) as the mandatory final validation of every change.
 
 Report results clearly. On a failure, show the relevant output, and if a browser (e2e) test failed, point me at the screenshot under `/tmp/devplace_test_screenshots/`. Never weaken a test to make it pass; if a test reveals a real bug, report it - do not edit the test.