Feature: Minimal planner infra

[can-keklik]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 34.19913% with 152 lines in your changes missing coverage. Please review.

Project coverage is 80.79%. Comparing base (f319479) to head (9662979).
Report is 15 commits behind head on main.

Files	Patch %	Lines
lykiadb-server/src/engine/interpreter.rs	5.26%	54 Missing ⚠️
lykiadb-server/src/plan/planner.rs	0.00%	54 Missing ⚠️
lykiadb-server/src/engine/stdlib/json.rs	0.00%	12 Missing ⚠️
lykiadb-server/src/comm/mod.rs	0.00%	9 Missing ⚠️
lykiadb-server/src/value/environment.rs	68.18%	7 Missing ⚠️
lykiadb-server/src/engine/stdlib/fib.rs	0.00%	6 Missing ⚠️
lykiadb-lang/src/parser/mod.rs	86.11%	5 Missing ⚠️
lykiadb-server/src/plan/mod.rs	0.00%	3 Missing ⚠️
lykiadb-playground/src/lib.rs	0.00%	1 Missing ⚠️
lykiadb-playground/src/regularizer.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #35      +/-   ##
==========================================
- Coverage   82.03%   80.79%   -1.25%     
==========================================
  Files          29       30       +1     
  Lines        4815     4899      +84     
==========================================
+ Hits         3950     3958       +8     
- Misses        865      941      +76     

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